Publish six verified Lesson 22 demos

projects/2026Fall進階專題六午/張棨竣/week22_六都與非六都的幼兒園人數變化/DATA_SOURCE.md

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+# 範例資料來源
+
+- 資料集：教育部統計處「各級學校縣市別學生人數」
+- 資料集頁面：https://data.gov.tw/dataset/40121
+- 原始 CSV：`data/students_by_county.csv`
+- 內容：104–114 學年度各縣市各教育階段的彙總學生人數。
+- 檔案共有 242 筆資料、15 個欄位，涵蓋 22 個縣市。
+- 授權：政府資料開放授權條款第 1 版；使用或改作時保留資料來源註記。
+
+## 下載同一份資料
+
+1. 開啟上方資料集頁面。
+2. 找到「資料資源下載網址」，按左側的 **CSV** 按鈕。旁邊的「檢視資料」是檔案說明。
+3. 下載的檔名是 `edu_B_1_4.csv`。本課把它改名為 `students_by_county.csv`，放在專案的 `data` 資料夾。
+
+課堂專案已附檔，不需要重新下載。網站之後可能更新年份；上課範例以本課提供的 104–114 學年度版本為準。
+
+這是彙總統計資料。它可以回答「多少人」或「不同地區、學年度的數值如何變化」，不能單獨說明變化的原因。若換成其他公開資料，請把來源網址、下載日期、欄位和單位補進本檔。

projects/2026Fall進階專題六午/張棨竣/week22_六都與非六都的幼兒園人數變化/README.md

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+# 六都與非六都的幼兒園人數變化
+
+> 教師整理的 Demo 說明。學生原報告仍保留於教室。
+
+## 方法
+
+104、114 學年度，按六都與非六都加總幼兒園人數，再用差額除以起始人數。
+
+## 結果
+
+六都 321,160 → 368,660 人（+14.79%）；非六都 140,955 → 162,417 人（+15.23%）。
+
+## 資料來源和限制
+
+教育部統計處「各級學校縣市別學生人數」，見 DATA_SOURCE.md。
+
+這些數字描述資料中觀察到的變化，無法單靠這份資料判定原因。
+
+## Demo 修正
+
+移除「抗跌」和少子化影響的推論；統一報告與程式的欄位。

projects/2026Fall進階專題六午/張棨竣/week22_六都與非六都的幼兒園人數變化/data/students_by_county.csv

@@ -0,0 +1,243 @@
+學年度,縣市別,幼兒園[人],國小[人],國中[人],高級中等學校-普通科[人],高級中等學校-專業群科[人],高級中等學校-綜合高中[人],高級中等學校-實用技能學程[人],高級中等學校-進修部[人],大專校院(全部計入校本部)[人],大專校院(跨縣市教學計入所在地縣市)[人],宗教研修學院[人],國中小進修部(補校)及大專進修學校及空大[人],特殊教育學校[人]
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+110,雲林縣,15011,30256,17466,6900,5978,978,1153,399,24124,24936,0,269,180
+110,嘉義縣,9198,17571,9219,2652,2692,74,657,138,24808,28824,0,92,0
+110,屏東縣,18038,34546,17910,7705,5825,642,398,621,34038,33925,0,378,156
+110,臺東縣,4937,9768,5322,577,2341,1786,151,160,6095,6105,0,19,99
+110,花蓮縣,7687,15242,8045,3608,3276,987,16,374,17714,17588,0,171,103
+110,澎湖縣,1853,3485,1810,776,1189,0,41,0,3063,3063,0,30,0
+110,基隆市,7961,15795,8125,3255,3598,195,156,274,15000,15000,0,231,107
+110,新竹市,14554,33197,15841,8654,6983,972,452,937,50745,44811,0,122,0
+110,嘉義市,7302,14883,8456,6038,6502,600,1594,375,12747,10384,0,78,207
+110,金門縣,2194,3878,1871,940,828,0,0,46,4215,4284,0,0,0
+110,連江縣,292,492,247,0,0,232,0,0,0,48,0,0,0
+111,新北市,88525,207675,87567,36341,27082,3983,282,2660,129608,125103,69,16834,252
+111,臺北市,55777,127285,63593,53909,22367,1690,376,3139,244638,234009,175,3305,583
+111,桃園市,62603,135930,59783,28878,26777,752,2852,2508,96681,107419,43,1092,321
+111,臺中市,80497,165662,75249,36005,32114,1480,5374,3438,181341,180820,0,4170,640
+111,臺南市,48170,95050,44319,21835,15310,2307,2461,1416,101751,102225,68,639,393
+111,高雄市,63808,132841,61145,31388,28889,987,3032,1767,130544,134435,118,5064,483
+111,宜蘭縣,11243,22238,11253,5297,3685,916,473,385,10345,11767,0,249,81
+111,新竹縣,19065,39663,16837,4983,4707,873,862,605,11119,14069,0,119,204
+111,苗栗縣,13742,29098,12944,6063,5488,262,775,384,17239,17071,0,155,113
+111,彰化縣,30784,62313,29093,10370,13124,2801,2293,1249,21299,21299,0,260,480
+111,南投縣,11322,22789,10915,3344,4990,991,436,420,9165,9165,86,162,105
+111,雲林縣,14710,30506,16394,6807,5802,878,1068,340,23820,24677,0,218,163
+111,嘉義縣,8811,17658,8625,2613,2277,0,462,105,23901,27830,0,75,0
+111,屏東縣,17798,35286,16731,7658,5470,644,328,518,32324,32114,0,298,141
+111,臺東縣,4907,9976,4962,546,2243,1742,140,149,5854,5958,0,12,99
+111,花蓮縣,7407,15530,7741,3538,3112,913,7,359,17143,17038,0,139,101
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+111,基隆市,7733,16146,7644,3289,3321,170,121,224,14190,14190,0,162,92
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+112,臺南市,47927,96383,42710,21844,14793,2258,2295,1231,94711,95217,59,605,387
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+112,苗栗縣,13893,29208,12557,6025,5249,195,714,325,16591,16425,0,164,106
+112,彰化縣,30602,62675,27965,10231,12599,2596,2035,1123,17722,17722,0,249,446
+112,南投縣,11253,22883,10602,3288,4731,922,320,359,9122,9122,114,156,105
+112,雲林縣,14799,30604,15454,6719,5383,769,1006,305,23049,23832,0,206,161
+112,嘉義縣,8757,17664,8216,2535,2276,0,326,98,23233,27497,0,67,0
+112,屏東縣,17854,35817,15960,7301,5100,612,279,450,30157,29958,0,331,134
+112,臺東縣,4916,9949,4752,506,2058,1650,121,129,5807,5907,0,8,90
+112,花蓮縣,7313,15595,7484,3460,2800,972,5,322,16622,16532,0,137,96
+112,澎湖縣,1822,3632,1625,693,971,0,26,0,2702,2702,0,29,0
+112,���隆市,7703,16303,7270,3292,3083,136,59,222,13813,13813,0,182,80
+112,新竹市,14584,34035,15109,8810,7432,552,378,731,49073,42827,0,111,0
+112,嘉義市,7288,15035,7760,5899,5861,470,1126,298,11727,9060,0,42,218
+112,金門縣,2087,3988,1795,939,778,0,0,41,4050,4105,0,0,0
+112,連江縣,278,496,252,0,0,269,0,0,0,54,0,0,0
+113,新北市,85532,202483,90131,36744,25707,3992,242,2340,119190,116885,28,16888,222
+113,臺北市,50990,122987,64808,53247,21907,1665,413,2968,234053,223992,172,3113,590
+113,桃園市,63421,135942,61743,29186,26245,770,2661,1844,94684,104871,54,1106,293
+113,臺中市,77511,165484,77345,36635,30749,1371,5705,3055,175722,175075,0,3970,624
+113,臺南市,46610,93966,44331,21940,14353,2291,2245,1106,91347,91947,53,564,377
+113,高雄市,61751,131156,61242,31247,26786,914,3412,1444,121965,124137,43,4698,468
+113,宜蘭縣,10954,22157,11263,5227,3292,860,405,304,9388,10659,0,237,69
+113,新竹縣,18790,39379,17585,5054,4947,1130,999,523,10980,12951,0,161,201
+113,苗栗縣,13459,28315,13092,6104,5088,106,700,310,16438,16365,0,175,108
+113,彰化縣,29864,60625,28516,10028,12375,2407,1922,928,15787,15854,0,270,435
+113,南投縣,10944,22256,10999,3191,4494,856,206,335,9073,9073,147,170,109
+113,雲林縣,14534,29618,15584,6655,5026,694,949,252,22445,23301,0,236,157
+113,嘉義縣,8639,17154,8240,2490,2221,0,224,98,23133,27250,0,59,0
+113,屏東縣,17527,34969,16427,7017,4806,565,182,390,28810,28750,0,329,142
+113,臺東縣,4739,9790,4834,519,1913,1634,111,140,5645,5833,0,11,85
+113,花蓮縣,6943,15179,7507,3455,2530,1102,16,299,15861,15839,0,120,106
+113,澎湖縣,1814,3534,1666,682,854,0,22,0,2388,2651,0,12,0
+113,基隆市,7355,15951,7408,3263,2905,127,45,185,13383,13429,0,189,90
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+113,金門縣,2011,3928,1877,954,803,0,0,39,3823,3866,0,0,0
+113,連江縣,268,487,257,0,0,257,0,0,0,140,0,0,0
+114,新北市,81149,194670,96668,36359,23972,4106,221,2306,117768,117768,42,16892,243
+114,臺北市,47886,117650,68231,53020,21069,1626,415,2829,230483,230483,162,3140,564
+114,桃園市,61764,132964,66607,28850,25498,760,2636,1742,93462,93462,57,1154,285
+114,臺中市,74369,161332,82767,36484,29330,1354,5575,2772,174618,174618,0,3975,562
+114,臺南市,44318,91142,47883,21507,13301,2070,2128,1012,88863,88863,56,404,375
+114,高雄市,59174,127327,65631,30498,25072,820,3435,1329,118531,118531,0,5465,466
+114,宜蘭縣,10651,21605,11843,5046,3099,865,372,291,9143,9143,0,219,74
+114,新竹縣,18409,38373,18746,5267,4847,1160,1077,489,11340,11340,0,129,194
+114,苗栗縣,12852,27368,14041,6011,4587,44,641,285,15950,15950,0,159,100
+114,彰化縣,28486,58539,29788,9769,11956,2287,1656,758,15361,15361,0,279,429
+114,南投縣,10499,21608,11428,3121,4139,803,184,318,8947,8947,160,192,111
+114,雲林縣,13953,28798,16118,6500,4573,638,776,254,22453,22453,30,250,152
+114,嘉義縣,8270,16524,8509,2467,2208,0,117,93,22510,22510,0,81,0
+114,屏東縣,16988,34245,17225,6668,4547,504,162,371,27749,27749,0,298,151
+114,臺東縣,4553,9507,5035,502,1671,1580,95,139,5391,5391,0,10,85
+114,花蓮縣,6670,14809,7708,3328,2390,1115,7,301,15029,15029,0,156,115
+114,澎湖縣,1809,3434,1757,658,799,0,26,0,2202,2202,0,22,0
+114,基隆市,7020,15403,7827,3066,2530,127,26,168,13242,13242,0,154,83
+114,新竹市,13500,31460,16964,9222,7124,416,313,573,49039,49039,0,96,0
+114,嘉義市,6655,14126,8377,5680,5782,384,879,323,11103,11103,0,64,210
+114,金門縣,1867,3886,1948,950,752,0,0,32,3660,3660,0,0,0
+114,連江縣,235,488,247,0,0,252,0,0,0,0,0,0,0

projects/2026Fall進階專題六午/張棨竣/week22_六都與非六都的幼兒園人數變化/main.py

@@ -0,0 +1,137 @@
+"""Lesson 21：用同一份公開資料練習排名、文字圖與跨年比較。"""
+
+import csv
+from pathlib import Path
+
+
+DATA_FILE = Path("data/students_by_county.csv")  # 請對應你的實際檔名
+
+# 條件設定：設定要分析的欄位與時間跨度（104 到 114 學年度）
+BEFORE_YEAR = "104"
+AFTER_YEAR = "114"
+FIELD = "幼兒園[人]"
+TOP_N = 5
+
+# 定義六都清單
+SIX_MUNICIPALITIES = ["新北市", "臺北市", "桃園市", "臺中市", "臺南市", "高雄市"]
+
+
+def load_rows(path=DATA_FILE):
+    """將 CSV 每列讀成 dict；兼容有 BOM 的 UTF-8 檔案。"""
+    with open(path, encoding="utf-8-sig", newline="") as file:
+        return list(csv.DictReader(file))
+
+
+def parse_count(value):
+    """數字文字轉成整數；空白、破折號與無效值回傳 None。"""
+    cleaned = (value or "").strip().replace(",", "")
+    if not cleaned or cleaned == "-":
+        return None
+    try:
+        return int(cleaned)
+    except ValueError:
+        return None
+
+
+def get_count(rows, school_year, county, field):
+    """查詢指定學年度、縣市與教育階段的人數；找不到回傳 None。"""
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        if row.get("縣市別", "").strip() == county:
+            return parse_count(row.get(field))
+    return None
+
+
+def count_by_county(rows, school_year, field):
+    """同一學年度的人數排名；未知值不當成 0。"""
+    totals = {}
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        county = row.get("縣市別", "").strip()
+        count = parse_count(row.get(field))
+        if county and count is not None:
+            totals[county] = count
+    return sorted(totals.items(), key=lambda item: item[1], reverse=True)
+
+
+def print_text_chart(results, limit=5):
+    """使用相同尺度畫文字長條，並保留可核對的人數。"""
+    visible = results[:max(0, limit)]
+    if not visible:
+        print("沒有符合條件的資料，請檢查學年度、欄位名稱與顯示筆數。")
+        return
+    largest = max(value for _, value in visible)
+    print("縣市        人數（人） | 比例長條")
+    for county, value in visible:
+        bar_length = round(value / largest * 24) if largest else 0
+        print(f"{county:<6} {value:>8,} | {'█' * bar_length}")
+    print("長條從 0 開始，最長為 24 格；仍以旁邊的實際數字核對。")
+
+
+def main():
+    rows = load_rows()
+    print("=== Lesson 21：幼兒園學生人數變化 ===")
+    print(f"讀入 {len(rows)} 列資料")
+    if not rows:
+        print("CSV 沒有資料，請檢查檔案。")
+        return
+
+    # 第一部分：顯示 AFTER_YEAR 的排行榜與文字長條圖
+    results = count_by_county(rows, AFTER_YEAR, FIELD)
+    print(f"\n{AFTER_YEAR} 學年度各縣市 {FIELD}（前 {TOP_N} 名）")
+    print_text_chart(results, TOP_N)
+    print("來源：教育部統計處｜各級學校縣市別學生人數（課堂 CSV）")
+
+    # 第二部分：計算各縣市從 BEFORE_YEAR 到 AFTER_YEAR 的成長率，回答誰影響最輕微
+    print(f"\n=== 各縣市 {FIELD} 從 {BEFORE_YEAR} → {AFTER_YEAR} 學年度變化率排名 ===")
+    
+    growth_list = []
+    six_total_before, six_total_after = 0, 0
+    non_six_total_before, non_six_total_after = 0, 0
+
+    # 取得所有出現過的縣市清單
+    counties = set(row.get("縣市別", "").strip() for row in rows if row.get("縣市別", "").strip())
+
+    for county in counties:
+        b_val = get_count(rows, BEFORE_YEAR, county, FIELD)
+        a_val = get_count(rows, AFTER_YEAR, county, FIELD)
+        
+        if b_val is not None and a_val is not None:
+            diff = a_val - b_val
+            rate = (diff / b_val) * 100
+            is_six = county in SIX_MUNICIPALITIES
+            group = "六都" if is_six else "非六都"
+            growth_list.append((county, group, b_val, a_val, diff, rate))
+
+            # 累計群體總人數
+            if is_six:
+                six_total_before += b_val
+                six_total_after += a_val
+            else:
+                non_six_total_before += b_val
+                non_six_total_after += a_val
+
+    # 依成長率由高到低排序（成長率越高代表受少子化負面影響越輕微、抗跌最強）
+    growth_list.sort(key=lambda x: x[5], reverse=True)
+
+    print(f"{'縣市':<6} {'類別':<4} {BEFORE_YEAR+'年':>8} {AFTER_YEAR+'年':>8} {'增減人數':>9} {'成長率':>8}")
+    print("-" * 55)
+    for county, group, b_val, a_val, diff, rate in growth_list:
+        print(f"{county:<6} {group:<4} {b_val:>8,} {a_val:>8,} {diff:>+9,} {rate:>+7.2f}%")
+
+    # 計算整體六都 vs 非六都成長率
+    six_rate = ((six_total_after - six_total_before) / six_total_before) * 100
+    non_six_rate = ((non_six_total_after - non_six_total_before) / non_six_total_before) * 100
+
+    print("\n=== 六都 vs 非六都整體對比結論 ===")
+    print(f"【六都整體】幼兒園人數從 {six_total_before:,} 變為 {six_total_after:,}，整體成長率：{six_rate:+.2f}%")
+    print(f"【非六都整體】幼兒園人數從 {non_six_total_before:,} 變為 {non_six_total_after:,}，整體成長率：{non_six_rate:+.2f}%")
+    
+    top_c = growth_list[0]
+    print(f"\n💡 綜合發現：人數增幅最大的縣市是【{top_c[0]}】（屬{top_c[1]}），成長率高達 {top_c[5]:+.2f}%！")
+
+
+if __name__ == "__main__":
+    main()

projects/2026Fall進階專題六午/李合盛/week22_臺北市國中學生人數與縣市排名/DATA_SOURCE.md

@@ -0,0 +1,18 @@
+# 範例資料來源
+
+- 資料集：教育部統計處「各級學校縣市別學生人數」
+- 資料集頁面：https://data.gov.tw/dataset/40121
+- 原始 CSV：`data/students_by_county.csv`
+- 內容：104–114 學年度各縣市各教育階段的彙總學生人數。
+- 檔案共有 242 筆資料、15 個欄位，涵蓋 22 個縣市。
+- 授權：政府資料開放授權條款第 1 版；使用或改作時保留資料來源註記。
+
+## 下載同一份資料
+
+1. 開啟上方資料集頁面。
+2. 找到「資料資源下載網址」，按左側的 **CSV** 按鈕。旁邊的「檢視資料」是檔案說明。
+3. 下載的檔名是 `edu_B_1_4.csv`。本課把它改名為 `students_by_county.csv`，放在專案的 `data` 資料夾。
+
+課堂專案已附檔，不需要重新下載。網站之後可能更新年份；上課範例以本課提供的 104–114 學年度版本為準。
+
+這是彙總統計資料。它可以回答「多少人」或「不同地區、學年度的數值如何變化」，不能單獨說明變化的原因。若換成其他公開資料，請把來源網址、下載日期、欄位和單位補進本檔。

projects/2026Fall進階專題六午/李合盛/week22_臺北市國中學生人數與縣市排名/README.md

@@ -0,0 +1,21 @@
+# 臺北市國中學生人數與縣市排名
+
+> 教師整理的 Demo 說明。學生原報告仍保留於教室。
+
+## 方法
+
+以課堂 CSV 最早的 104 學年度作為起點，與原本選定的 112 學年度比較；另算 112 學年度各縣市排名。
+
+## 結果
+
+臺北市 75,015 → 62,422 人，差額 -12,593 人（-16.79%）。112 學年度臺北市排名第三。
+
+## 資料來源和限制
+
+教育部統計處「各級學校縣市別學生人數」，見 DATA_SOURCE.md。
+
+這些數字描述資料中觀察到的變化，無法單靠這份資料判定原因。
+
+## Demo 修正
+
+原作指定的 103 學年度不在 CSV，Demo 改用 104，保留 112 為終點。

projects/2026Fall進階專題六午/李合盛/week22_臺北市國中學生人數與縣市排名/data/students_by_county.csv

@@ -0,0 +1,243 @@
+學年度,縣市別,幼兒園[人],國小[人],國中[人],高級中等學校-普通科[人],高級中等學校-專業群科[人],高級中等學校-綜合高中[人],高級中等學校-實用技能學程[人],高級中等學校-進修部[人],大專校院(全部計入校本部)[人],大專校院(跨縣市教學計入所在地縣市)[人],宗教研修學院[人],國中小進修部(補校)及大專進修學校及空大[人],特殊教育學校[人]
+104,新北市,73526,201970,116039,40566,41358,5773,1434,6816,161853,154484,138,17150,400
+104,臺北市,47269,118471,75015,60532,39235,4892,530,7152,267363,244091,42,9174,828
+104,桃園市,44367,128444,76299,29529,36060,4300,4963,7623,109869,120426,0,2532,438
+104,臺中市,65946,157272,97447,37771,54951,3027,3423,7885,192593,191962,0,10182,953
+104,臺南市,40731,92570,58160,25795,24022,6146,4557,2813,132736,135744,0,1601,533
+104,高雄市,49321,134949,83539,35600,39574,5499,6502,4915,149988,156110,12,9450,678
+104,宜蘭縣,9791,23227,16014,6409,4899,1471,805,732,14725,17952,0,811,129
+104,新竹縣,13997,36265,19150,4230,5487,2763,858,1436,17525,23665,0,653,230
+104,苗栗縣,10492,29940,18268,5922,8086,2136,1285,1247,21352,21352,0,903,136
+104,彰化縣,24073,68920,42767,11939,19919,4790,2755,3975,38990,38990,0,1309,670
+104,南投縣,9328,25439,17256,4504,8411,870,1236,960,12458,12458,0,555,126
+104,雲林縣,12818,35903,24178,8009,9430,1971,1563,698,26340,27035,0,1145,211
+104,嘉義縣,8175,22434,14440,2708,5244,515,1697,460,25071,30424,0,914,0
+104,屏東縣,13986,39629,26193,8977,10010,1381,855,1299,42083,42203,0,1406,185
+104,臺東縣,4319,11156,7227,513,2349,3224,188,329,5963,6008,0,54,101
+104,花蓮縣,6561,16538,10861,4168,4184,2682,93,673,19610,19562,0,284,170
+104,澎湖縣,1635,3972,2670,1018,1651,0,60,0,2984,2984,0,33,0
+104,基隆市,6091,17341,11496,5081,6555,416,365,656,16077,16077,0,2018,157
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+104,嘉義市,5918,16104,11640,6358,9204,1660,1846,842,18728,15324,0,268,316
+104,金門縣,1851,3679,2144,988,961,0,60,53,4389,4523,0,0,0
+104,連江縣,223,443,259,0,0,335,0,0,0,21,0,0,0
+105,新北市,77229,195706,106199,41342,39875,5791,1205,6119,157674,151012,136,16599,397
+105,臺北市,50079,116496,69178,59008,37749,4659,472,6294,267043,244062,53,8685,815
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+105,臺南市,43250,89475,53089,26098,23331,5324,4362,2700,128882,131468,0,1429,508
+105,高雄市,54095,129914,76167,35688,39310,4683,5988,4136,148244,154088,27,8797,667
+105,宜蘭縣,10247,22349,14783,6383,4743,1399,769,607,14458,17717,0,872,115
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+105,苗栗縣,11018,28579,16836,6157,8037,1852,1216,1124,20832,20794,0,707,129
+105,彰化縣,25336,65423,39679,12079,19434,4550,2799,3684,37422,37450,0,1160,623
+105,南投縣,9873,24180,15716,4461,8426,739,1226,791,12191,12191,13,536,149
+105,雲林縣,13080,34012,22308,8080,9369,1810,1527,658,25729,26405,0,1070,208
+105,嘉義縣,8490,20810,13153,2729,4953,519,1778,483,24448,29757,0,915,0
+105,屏東縣,14616,37482,24014,9246,9664,1091,811,1206,41174,41150,0,1487,189
+105,臺東縣,4510,10702,6682,537,2519,2847,182,303,5910,6091,0,37,111
+105,花蓮縣,6772,15914,10165,4144,4074,2404,64,598,19426,19510,0,257,171
+105,澎湖縣,1685,3756,2452,1000,1668,0,65,0,3018,3018,0,29,0
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+105,嘉義市,6220,15468,10634,6507,9047,1475,1892,777,18457,15053,0,251,329
+105,金門縣,1936,3618,2023,1009,1016,0,51,36,4515,4618,0,0,0
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+106,新北市,81348,192321,100608,40999,37328,5581,917,5336,151475,145054,116,16615,385
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+106,臺中市,77619,150412,85244,37962,50784,2020,3836,6211,188641,188114,0,9450,897
+106,臺南市,46663,87329,50556,25817,22075,4418,4007,2540,124447,126610,0,1397,482
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+106,宜蘭縣,10639,21563,14108,6290,4513,1306,673,529,13546,16707,0,806,116
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+106,苗栗縣,11727,27602,15835,6216,7835,1552,1221,934,19806,19674,0,425,135
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+106,南投縣,10345,23221,14436,4525,8302,623,1114,679,11578,11578,28,530,145
+106,雲林縣,13617,32410,21017,7949,8666,1577,1451,667,25198,25932,0,1066,197
+106,嘉義縣,8649,19569,12207,2732,4964,495,1583,502,24088,29101,0,886,0
+106,屏東縣,15592,35645,22574,9068,9114,964,698,1105,39787,39639,0,1494,189
+106,臺東縣,4643,10385,6303,563,2543,2635,188,257,5860,5997,0,28,114
+106,花蓮縣,7017,15363,9614,4047,3875,2185,28,538,18762,18819,0,256,158
+106,澎湖縣,1766,3524,2362,970,1588,0,64,0,3008,3008,0,18,0
+106,基隆市,6909,15944,9635,4696,5852,349,412,437,15211,15211,0,2208,131
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+106,嘉義市,6466,15068,9996,6407,8940,1371,1922,693,18014,14659,0,230,302
+106,金門縣,2026,3619,1948,1007,1005,0,47,52,4501,4562,0,0,0
+106,連江縣,292,474,227,0,0,304,0,0,0,19,0,0,0
+107,新北市,83960,195862,95923,39153,34275,5128,700,4693,147293,141046,89,17056,318
+107,臺北市,54229,118097,64651,57381,31239,3316,302,4712,259340,239263,124,7409,739
+107,桃園市,54358,124639,64734,29262,33257,2544,4422,5138,101858,113066,0,2628,419
+107,臺中市,79891,153260,81865,37422,45640,1970,4119,5479,186363,185886,0,9543,807
+107,臺南市,47210,88745,48570,24629,19920,3480,3594,2101,120215,121598,47,1342,446
+107,高雄市,57683,126527,69362,34231,36231,2134,5094,3021,141008,146140,128,7742,625
+107,宜蘭縣,10876,21515,13233,5981,4325,1233,610,555,12864,15850,0,816,103
+107,新竹縣,16412,36512,16990,5204,5121,1174,850,949,14411,19541,0,545,241
+107,苗栗縣,12027,27778,14967,6182,7363,1152,1206,867,18887,18704,0,219,118
+107,彰化縣,29513,62367,35150,11949,17139,3951,2689,2712,33376,33328,0,870,511
+107,南投縣,10617,22763,13531,4269,7575,637,970,588,10926,10926,50,470,137
+107,雲林縣,14170,31645,19840,7607,7833,1273,1403,642,24836,25598,0,1038,202
+107,嘉義縣,8865,18736,11450,2700,4597,426,1336,399,27312,31702,0,979,0
+107,屏東縣,16004,35146,21110,8665,8086,828,640,1095,38794,38541,0,1532,173
+107,臺東縣,4733,10189,6052,562,2622,2349,185,275,5757,5814,0,37,108
+107,花蓮縣,7160,15235,9102,3975,3725,1780,72,491,18269,18301,0,269,143
+107,澎湖縣,1803,3472,2200,897,1542,0,44,0,3025,3025,0,18,0
+107,基隆市,7169,15896,9031,4093,5088,338,411,413,14802,14802,0,2162,114
+107,新竹市,13773,30866,15214,9256,5875,2906,533,1358,47161,46003,0,246,0
+107,嘉義市,6628,15090,9351,6298,8298,1214,1865,589,14022,11234,0,208,288
+107,金門縣,2037,3729,1863,976,1018,0,34,47,4303,4374,0,0,0
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+108,臺北市,56635,120623,64558,56217,26944,2641,323,4024,256209,237838,148,7326,653
+108,桃園市,58589,126902,63378,29030,30448,1781,3993,4183,99870,110856,0,2639,409
+108,臺中市,81908,155376,80549,36466,39657,1806,4435,4760,184268,183875,0,9967,702
+108,臺南市,47967,90188,47473,23228,17808,2843,3121,1912,115057,115794,67,1578,408
+108,高雄市,60483,127513,67579,32753,33865,1212,4279,2681,138258,143051,171,7619,566
+108,宜蘭縣,11389,21698,12534,5663,4093,1103,601,581,12197,14880,0,689,86
+108,新竹縣,17325,37203,16909,5029,4977,918,824,760,13314,17919,0,584,213
+108,苗栗縣,13390,27856,14515,5933,6656,971,1083,769,18246,18018,0,228,114
+108,彰化縣,31301,62052,33185,11609,15924,3582,2643,2113,31147,31147,0,817,493
+108,南投縣,11295,22689,12793,3907,6876,778,796,561,10214,10214,58,494,123
+108,雲林縣,14988,31117,18968,7225,6736,1182,1285,530,24603,25358,0,817,193
+108,嘉義縣,9097,18355,10668,2636,4058,352,1080,333,26309,30480,0,1095,0
+108,屏東縣,17157,34688,20054,8123,7020,700,562,866,36734,36549,0,1310,168
+108,臺東縣,4853,9975,5805,541,2533,2105,187,237,5842,5863,0,33,114
+108,花蓮縣,7531,15217,8567,3810,3504,1485,20,434,18027,18040,0,289,127
+108,澎湖縣,1866,3472,2062,833,1368,0,52,0,3051,3051,0,36,0
+108,基隆市,7506,15862,8704,3502,4334,270,323,370,14561,14561,0,2061,114
+108,新竹市,14559,31907,15323,9025,6102,2073,494,1158,45986,44777,0,179,0
+108,嘉義市,6996,15107,8843,6076,7488,991,1746,423,13222,10593,0,184,264
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+108,連江縣,300,470,241,0,0,257,0,0,0,62,0,0,0
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+109,臺中市,84021,156584,79598,36000,35898,1680,5002,4219,186976,186543,0,6087,655
+109,臺南市,49113,90522,46886,22560,16556,2453,2897,1689,111807,112370,75,819,391
+109,高雄市,63771,127298,66052,31908,32132,1033,3562,2256,137812,142353,178,5159,535
+109,宜蘭縣,11549,21737,11869,5520,4016,988,566,481,11674,14166,0,427,91
+109,新竹縣,18473,37672,17130,4971,4884,851,780,729,12657,16589,0,187,192
+109,苗栗縣,14077,27698,14088,5921,6148,720,946,655,18036,17809,0,221,105
+109,彰化縣,32060,61453,31796,10988,15106,3324,2598,1737,28036,28036,0,455,498
+109,南投縣,11741,22273,12183,3646,6155,913,636,512,9771,9771,69,220,114
+109,雲林縣,15183,30472,18282,7091,6310,1116,1228,469,24519,25319,0,435,187
+109,嘉義縣,9397,17770,9990,2682,3212,197,850,218,25456,29682,0,118,0
+109,屏東縣,17983,34316,18930,7907,6302,649,483,722,35511,35454,0,683,163
+109,臺東縣,4923,9859,5592,592,2457,1867,167,199,5980,5953,0,28,104
+109,花蓮縣,7601,15194,8248,3696,3356,1212,14,419,17821,17714,0,192,110
+109,澎湖縣,1848,3446,1902,818,1283,0,47,0,3047,3047,0,33,0
+109,基隆市,8009,15691,8368,3338,3956,240,271,332,15735,15735,0,261,119
+109,新竹市,14728,32372,15651,8807,6680,1373,492,1106,45641,44392,0,154,0
+109,嘉義市,7237,14846,8710,6177,6906,796,1706,373,12826,10221,0,95,218
+109,金門縣,2202,3808,1854,941,911,0,0,50,4131,4213,0,0,0
+109,連江縣,293,493,257,0,0,237,0,0,0,44,0,0,0
+110,新北市,88778,202529,91044,36286,27493,4080,403,3135,135995,130782,65,16922,262
+110,臺北市,57492,125093,65268,54449,22915,1942,360,3373,250939,239082,165,3422,587
+110,桃園市,62155,131258,62184,28842,27813,922,3225,3082,99535,110565,18,1203,353
+110,臺中市,82579,160242,78320,35832,33498,1509,5328,3795,187115,186634,0,4737,635
+110,臺南市,49071,91967,46589,22150,15877,2340,2637,1595,108005,108508,73,728,387
+110,高雄市,65003,128846,64368,31497,30510,1052,3279,2098,136309,140652,150,5263,499
+110,宜蘭縣,11578,21720,11620,5346,3938,933,521,459,11076,13022,0,312,91
+110,新竹縣,18949,38429,17235,4993,4709,832,829,690,11956,15458,0,148,195
+110,苗栗縣,14072,28275,13787,5967,5755,498,802,602,17825,17633,0,175,105
+110,彰化縣,31533,61364,30638,10593,14115,3062,2428,1482,25049,25049,0,381,496
+110,南投縣,11684,22481,11549,3413,5517,1043,574,486,9477,9477,89,205,111
+110,雲林縣,15011,30256,17466,6900,5978,978,1153,399,24124,24936,0,269,180
+110,嘉義縣,9198,17571,9219,2652,2692,74,657,138,24808,28824,0,92,0
+110,屏東縣,18038,34546,17910,7705,5825,642,398,621,34038,33925,0,378,156
+110,臺東縣,4937,9768,5322,577,2341,1786,151,160,6095,6105,0,19,99
+110,花蓮縣,7687,15242,8045,3608,3276,987,16,374,17714,17588,0,171,103
+110,澎湖縣,1853,3485,1810,776,1189,0,41,0,3063,3063,0,30,0
+110,基隆市,7961,15795,8125,3255,3598,195,156,274,15000,15000,0,231,107
+110,新竹市,14554,33197,15841,8654,6983,972,452,937,50745,44811,0,122,0
+110,嘉義市,7302,14883,8456,6038,6502,600,1594,375,12747,10384,0,78,207
+110,金門縣,2194,3878,1871,940,828,0,0,46,4215,4284,0,0,0
+110,連江縣,292,492,247,0,0,232,0,0,0,48,0,0,0
+111,新北市,88525,207675,87567,36341,27082,3983,282,2660,129608,125103,69,16834,252
+111,臺北市,55777,127285,63593,53909,22367,1690,376,3139,244638,234009,175,3305,583
+111,桃園市,62603,135930,59783,28878,26777,752,2852,2508,96681,107419,43,1092,321
+111,臺中市,80497,165662,75249,36005,32114,1480,5374,3438,181341,180820,0,4170,640
+111,臺南市,48170,95050,44319,21835,15310,2307,2461,1416,101751,102225,68,639,393
+111,高雄市,63808,132841,61145,31388,28889,987,3032,1767,130544,134435,118,5064,483
+111,宜蘭縣,11243,22238,11253,5297,3685,916,473,385,10345,11767,0,249,81
+111,新竹縣,19065,39663,16837,4983,4707,873,862,605,11119,14069,0,119,204
+111,苗栗縣,13742,29098,12944,6063,5488,262,775,384,17239,17071,0,155,113
+111,彰化縣,30784,62313,29093,10370,13124,2801,2293,1249,21299,21299,0,260,480
+111,南投縣,11322,22789,10915,3344,4990,991,436,420,9165,9165,86,162,105
+111,雲林縣,14710,30506,16394,6807,5802,878,1068,340,23820,24677,0,218,163
+111,嘉義縣,8811,17658,8625,2613,2277,0,462,105,23901,27830,0,75,0
+111,屏東縣,17798,35286,16731,7658,5470,644,328,518,32324,32114,0,298,141
+111,臺東縣,4907,9976,4962,546,2243,1742,140,149,5854,5958,0,12,99
+111,花蓮縣,7407,15530,7741,3538,3112,913,7,359,17143,17038,0,139,101
+111,澎湖縣,1788,3548,1697,733,1082,0,31,0,2927,2927,0,29,0
+111,基隆市,7733,16146,7644,3289,3321,170,121,224,14190,14190,0,162,92
+111,新竹市,14456,33869,15530,8716,7225,704,426,835,50067,44047,0,104,0
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+111,金門縣,2151,3909,1823,939,807,0,0,44,4175,4243,0,0,0
+111,連江縣,290,480,245,0,0,265,0,0,0,27,0,0,0
+112,新北市,88341,208980,85762,36496,26180,3948,254,2371,121961,117829,46,16626,243
+112,臺北市,53918,127398,62422,53653,21986,1648,456,2982,237221,228032,159,3289,572
+112,桃園市,63995,138435,58718,29096,26703,740,2731,2016,94438,104594,56,1092,310
+112,臺中市,79789,168752,73448,36378,31315,1380,5568,3166,177725,177187,0,4035,640
+112,臺南市,47927,96383,42710,21844,14793,2258,2295,1231,94711,95217,59,605,387
+112,高雄市,63390,134605,58888,31351,27449,1027,3129,1629,124633,127985,77,4930,471
+112,宜蘭縣,11251,22523,11013,5164,3434,880,422,308,9876,11221,0,247,65
+112,新竹縣,18821,40410,16537,5062,4741,1006,907,533,10596,13208,0,137,210
+112,苗栗縣,13893,29208,12557,6025,5249,195,714,325,16591,16425,0,164,106
+112,彰化縣,30602,62675,27965,10231,12599,2596,2035,1123,17722,17722,0,249,446
+112,南投縣,11253,22883,10602,3288,4731,922,320,359,9122,9122,114,156,105
+112,雲林縣,14799,30604,15454,6719,5383,769,1006,305,23049,23832,0,206,161
+112,嘉義縣,8757,17664,8216,2535,2276,0,326,98,23233,27497,0,67,0
+112,屏東縣,17854,35817,15960,7301,5100,612,279,450,30157,29958,0,331,134
+112,臺東縣,4916,9949,4752,506,2058,1650,121,129,5807,5907,0,8,90
+112,花蓮縣,7313,15595,7484,3460,2800,972,5,322,16622,16532,0,137,96
+112,澎湖縣,1822,3632,1625,693,971,0,26,0,2702,2702,0,29,0
+112,���隆市,7703,16303,7270,3292,3083,136,59,222,13813,13813,0,182,80
+112,新竹市,14584,34035,15109,8810,7432,552,378,731,49073,42827,0,111,0
+112,嘉義市,7288,15035,7760,5899,5861,470,1126,298,11727,9060,0,42,218
+112,金門縣,2087,3988,1795,939,778,0,0,41,4050,4105,0,0,0
+112,連江縣,278,496,252,0,0,269,0,0,0,54,0,0,0
+113,新北市,85532,202483,90131,36744,25707,3992,242,2340,119190,116885,28,16888,222
+113,臺北市,50990,122987,64808,53247,21907,1665,413,2968,234053,223992,172,3113,590
+113,桃園市,63421,135942,61743,29186,26245,770,2661,1844,94684,104871,54,1106,293
+113,臺中市,77511,165484,77345,36635,30749,1371,5705,3055,175722,175075,0,3970,624
+113,臺南市,46610,93966,44331,21940,14353,2291,2245,1106,91347,91947,53,564,377
+113,高雄市,61751,131156,61242,31247,26786,914,3412,1444,121965,124137,43,4698,468
+113,宜蘭縣,10954,22157,11263,5227,3292,860,405,304,9388,10659,0,237,69
+113,新竹縣,18790,39379,17585,5054,4947,1130,999,523,10980,12951,0,161,201
+113,苗栗縣,13459,28315,13092,6104,5088,106,700,310,16438,16365,0,175,108
+113,彰化縣,29864,60625,28516,10028,12375,2407,1922,928,15787,15854,0,270,435
+113,南投縣,10944,22256,10999,3191,4494,856,206,335,9073,9073,147,170,109
+113,雲林縣,14534,29618,15584,6655,5026,694,949,252,22445,23301,0,236,157
+113,嘉義縣,8639,17154,8240,2490,2221,0,224,98,23133,27250,0,59,0
+113,屏東縣,17527,34969,16427,7017,4806,565,182,390,28810,28750,0,329,142
+113,臺東縣,4739,9790,4834,519,1913,1634,111,140,5645,5833,0,11,85
+113,花蓮縣,6943,15179,7507,3455,2530,1102,16,299,15861,15839,0,120,106
+113,澎湖縣,1814,3534,1666,682,854,0,22,0,2388,2651,0,12,0
+113,基隆市,7355,15951,7408,3263,2905,127,45,185,13383,13429,0,189,90
+113,新竹市,14063,32858,15928,9046,7575,421,369,606,48901,42763,0,108,0
+113,嘉義市,6997,14593,8017,5819,5922,447,939,300,11349,8734,0,57,227
+113,金門縣,2011,3928,1877,954,803,0,0,39,3823,3866,0,0,0
+113,連江縣,268,487,257,0,0,257,0,0,0,140,0,0,0
+114,新北市,81149,194670,96668,36359,23972,4106,221,2306,117768,117768,42,16892,243
+114,臺北市,47886,117650,68231,53020,21069,1626,415,2829,230483,230483,162,3140,564
+114,桃園市,61764,132964,66607,28850,25498,760,2636,1742,93462,93462,57,1154,285
+114,臺中市,74369,161332,82767,36484,29330,1354,5575,2772,174618,174618,0,3975,562
+114,臺南市,44318,91142,47883,21507,13301,2070,2128,1012,88863,88863,56,404,375
+114,高雄市,59174,127327,65631,30498,25072,820,3435,1329,118531,118531,0,5465,466
+114,宜蘭縣,10651,21605,11843,5046,3099,865,372,291,9143,9143,0,219,74
+114,新竹縣,18409,38373,18746,5267,4847,1160,1077,489,11340,11340,0,129,194
+114,苗栗縣,12852,27368,14041,6011,4587,44,641,285,15950,15950,0,159,100
+114,彰化縣,28486,58539,29788,9769,11956,2287,1656,758,15361,15361,0,279,429
+114,南投縣,10499,21608,11428,3121,4139,803,184,318,8947,8947,160,192,111
+114,雲林縣,13953,28798,16118,6500,4573,638,776,254,22453,22453,30,250,152
+114,嘉義縣,8270,16524,8509,2467,2208,0,117,93,22510,22510,0,81,0
+114,屏東縣,16988,34245,17225,6668,4547,504,162,371,27749,27749,0,298,151
+114,臺東縣,4553,9507,5035,502,1671,1580,95,139,5391,5391,0,10,85
+114,花蓮縣,6670,14809,7708,3328,2390,1115,7,301,15029,15029,0,156,115
+114,澎湖縣,1809,3434,1757,658,799,0,26,0,2202,2202,0,22,0
+114,基隆市,7020,15403,7827,3066,2530,127,26,168,13242,13242,0,154,83
+114,新竹市,13500,31460,16964,9222,7124,416,313,573,49039,49039,0,96,0
+114,嘉義市,6655,14126,8377,5680,5782,384,879,323,11103,11103,0,64,210
+114,金門縣,1867,3886,1948,950,752,0,0,32,3660,3660,0,0,0
+114,連江縣,235,488,247,0,0,252,0,0,0,0,0,0,0

projects/2026Fall進階專題六午/李合盛/week22_臺北市國中學生人數與縣市排名/main.py

@@ -0,0 +1,112 @@
+"""資料分析：讀取公開資料，查詢各縣市學生人數（修正版）。"""
+
+import csv
+from pathlib import Path
+
+
+DATA_FILE = Path("data/students_by_county.csv")
+SAMPLE_YEAR = "112"
+TARGET_COUNTY = "臺北市"
+SAMPLE_FIELD = "國中[人]"  # 如果你的 CSV 欄位名稱不同，可以修改這裡
+
+
+def load_rows(path=DATA_FILE):
+    """讀取 CSV；utf-8-sig 也能正確處理政府資料常見的 BOM。"""
+    if not path.exists():
+        print(f"【提示】找不到檔案：{path}，請確認檔案是否放在正確的路徑下。")
+        return []
+    with open(path, encoding="utf-8-sig", newline="") as file:
+        return list(csv.DictReader(file))
+
+
+def parse_count(value):
+    """將有人數的欄位轉成整數；空白或非數字代表未知，不當成 0。"""
+    if value is None:
+        return None
+    cleaned = str(value).strip().replace(",", "")
+    if not cleaned or cleaned == "-" or cleaned == "nan":
+        return None
+    try:
+        return int(cleaned)
+    except ValueError:
+        return None
+
+
+def count_by_county(rows, school_year, field):
+    """依學年度篩選，再回傳各縣市的人數排序。"""
+    totals = {}
+    for row in rows:
+        # 去除欄位鍵值的前後空白，避免 key 不符
+        row_year = str(row.get("學年度", "")).strip()
+        if row_year != str(school_year):
+            continue
+
+        count = parse_count(row.get(field))
+        county = str(row.get("縣市別", "")).strip()
+        if county and count is not None:
+            totals[county] = count
+
+    return sorted(totals.items(), key=lambda item: item[1], reverse=True)
+
+
+def get_count(rows, school_year, county, field):
+    """取得指定學年度、縣市及欄位的人數；找不到時回傳 None。"""
+    for row in rows:
+        row_year = str(row.get("學年度", "")).strip()
+        row_county = str(row.get("縣市別", "")).strip()
+        if row_year == str(school_year) and row_county == county:
+            return parse_count(row.get(field))
+    return None
+
+
+def print_text_chart(results, limit=5):
+    """在 Console 印出簡單長條圖，讓每筆數字都能被核對。"""
+    if not results:
+        print("沒有符合條件的資料，請檢查學年度和欄位名稱。")
+        return
+
+    visible = results[:limit]
+    largest = max(value for _, value in visible)
+    print("縣市        人數 | 比例長條")
+    for county, value in visible:
+        bar_length = round(value / largest * 24) if largest else 0
+        print(f"{county:<6} {value:>8,} | {'█' * bar_length}")
+
+
+def main():
+    rows = load_rows()
+    if not rows:
+        return
+
+    # 印出所有欄位名稱，方便你核對 CSV 裡真正的欄位叫什麼
+    fields = list(rows[0].keys()) if rows else []
+    print("=== 資料分析：縣市國中學生人數 ===")
+    print(f"讀入 {len(rows)} 列資料")
+    print(f"CSV 實際欄位：{fields}")
+    print()
+
+    # 1. 兩個學年度比較（104 vs 112 學年度）
+    count_104 = get_count(rows, "104", TARGET_COUNTY, SAMPLE_FIELD)
+    count_112 = get_count(rows, "112", TARGET_COUNTY, SAMPLE_FIELD)
+
+    print(f"【{TARGET_COUNTY} {SAMPLE_FIELD} 104–112 學年度變化】")
+    if count_104 is not None and count_112 is not None:
+        diff = count_112 - count_104
+        rate = (diff / count_104) * 100
+        print(f"- 104 學年度人數：{count_104:,} 人")
+        print(f"- 112 學年度人數：{count_112:,} 人")
+        print(f"- 增減比較：{count_112:,} - {count_104:,} = {diff:,} 人 ({rate:+.2f}%)")
+    else:
+        print("- 無法取得完整前後對比數據，請檢查 CSV 內的學年度是否包含 '104' 與 '112'，或欄位名稱是否正確。")
+    print()
+
+    # 2. 印出 112 學年度各縣市國中人數排名長條圖
+    question = f"{SAMPLE_YEAR} 學年度，各縣市的 {SAMPLE_FIELD} 排名？"
+    results = count_by_county(rows, SAMPLE_YEAR, SAMPLE_FIELD)
+    print(f"分析問題：{question}")
+    print_text_chart(results, limit=5)
+
+
+if __name__ == "__main__":
+    main()
+

projects/2026Fall進階專題六午/林守桀/week22_花蓮縣國小人數變化/DATA_SOURCE.md

@@ -0,0 +1,18 @@
+# 範例資料來源
+
+- 資料集：教育部統計處「各級學校縣市別學生人數」
+- 資料集頁面：https://data.gov.tw/dataset/40121
+- 原始 CSV：`data/students_by_county.csv`
+- 內容：104–114 學年度各縣市各教育階段的彙總學生人數。
+- 檔案共有 242 筆資料、15 個欄位，涵蓋 22 個縣市。
+- 授權：政府資料開放授權條款第 1 版；使用或改作時保留資料來源註記。
+
+## 下載同一份資料
+
+1. 開啟上方資料集頁面。
+2. 找到「資料資源下載網址」，按左側的 **CSV** 按鈕。旁邊的「檢視資料」是檔案說明。
+3. 下載的檔名是 `edu_B_1_4.csv`。本課把它改名為 `students_by_county.csv`，放在專案的 `data` 資料夾。
+
+課堂專案已附檔，不需要重新下載。網站之後可能更新年份；上課範例以本課提供的 104–114 學年度版本為準。
+
+這是彙總統計資料。它可以回答「多少人」或「不同地區、學年度的數值如何變化」，不能單獨說明變化的原因。若換成其他公開資料，請把來源網址、下載日期、欄位和單位補進本檔。

projects/2026Fall進階專題六午/林守桀/week22_花蓮縣國小人數變化/README.md

@@ -0,0 +1,21 @@
+# 花蓮縣國小人數變化
+
+> 教師整理的 Demo 說明。學生原報告仍保留於教室。
+
+## 方法
+
+用 105、114 學年度比較花蓮縣，另檢查哪些縣市在 105–109 學年度每年下降。
+
+## 結果
+
+花蓮縣 15,914 → 14,809 人，減少 1,105 人。105–109 學年度共有 8 個縣市逐年下降。
+
+## 資料來源和限制
+
+教育部統計處「各級學校縣市別學生人數」，見 DATA_SOURCE.md。
+
+這些數字描述資料中觀察到的變化，無法單靠這份資料判定原因。
+
+## Demo 修正
+
+保留實際程式題目；原稿標題另寫臺北與宜蘭國中，移到原稿供學生確認。

projects/2026Fall進階專題六午/林守桀/week22_花蓮縣國小人數變化/data/students_by_county.csv

@@ -0,0 +1,243 @@
+學年度,縣市別,幼兒園[人],國小[人],國中[人],高級中等學校-普通科[人],高級中等學校-專業群科[人],高級中等學校-綜合高中[人],高級中等學校-實用技能學程[人],高級中等學校-進修部[人],大專校院(全部計入校本部)[人],大專校院(跨縣市教學計入所在地縣市)[人],宗教研修學院[人],國中小進修部(補校)及大專進修學校及空大[人],特殊教育學校[人]
+104,新北市,73526,201970,116039,40566,41358,5773,1434,6816,161853,154484,138,17150,400
+104,臺北市,47269,118471,75015,60532,39235,4892,530,7152,267363,244091,42,9174,828
+104,桃園市,44367,128444,76299,29529,36060,4300,4963,7623,109869,120426,0,2532,438
+104,臺中市,65946,157272,97447,37771,54951,3027,3423,7885,192593,191962,0,10182,953
+104,臺南市,40731,92570,58160,25795,24022,6146,4557,2813,132736,135744,0,1601,533
+104,高雄市,49321,134949,83539,35600,39574,5499,6502,4915,149988,156110,12,9450,678
+104,宜蘭縣,9791,23227,16014,6409,4899,1471,805,732,14725,17952,0,811,129
+104,新竹縣,13997,36265,19150,4230,5487,2763,858,1436,17525,23665,0,653,230
+104,苗栗縣,10492,29940,18268,5922,8086,2136,1285,1247,21352,21352,0,903,136
+104,彰化縣,24073,68920,42767,11939,19919,4790,2755,3975,38990,38990,0,1309,670
+104,南投縣,9328,25439,17256,4504,8411,870,1236,960,12458,12458,0,555,126
+104,雲林縣,12818,35903,24178,8009,9430,1971,1563,698,26340,27035,0,1145,211
+104,嘉義縣,8175,22434,14440,2708,5244,515,1697,460,25071,30424,0,914,0
+104,屏東縣,13986,39629,26193,8977,10010,1381,855,1299,42083,42203,0,1406,185
+104,臺東縣,4319,11156,7227,513,2349,3224,188,329,5963,6008,0,54,101
+104,花蓮縣,6561,16538,10861,4168,4184,2682,93,673,19610,19562,0,284,170
+104,澎湖縣,1635,3972,2670,1018,1651,0,60,0,2984,2984,0,33,0
+104,基隆市,6091,17341,11496,5081,6555,416,365,656,16077,16077,0,2018,157
+104,新竹市,11697,29694,16662,8793,5764,3630,621,1785,51748,51050,0,249,0
+104,嘉義市,5918,16104,11640,6358,9204,1660,1846,842,18728,15324,0,268,316
+104,金門縣,1851,3679,2144,988,961,0,60,53,4389,4523,0,0,0
+104,連江縣,223,443,259,0,0,335,0,0,0,21,0,0,0
+105,新北市,77229,195706,106199,41342,39875,5791,1205,6119,157674,151012,136,16599,397
+105,臺北市,50079,116496,69178,59008,37749,4659,472,6294,267043,244062,53,8685,815
+105,桃園市,47794,124604,70471,29658,36600,3393,4944,7041,106343,116787,0,2675,448
+105,臺中市,72269,153062,89408,37764,54626,2042,3634,7160,191224,190633,0,10001,940
+105,臺南市,43250,89475,53089,26098,23331,5324,4362,2700,128882,131468,0,1429,508
+105,高雄市,54095,129914,76167,35688,39310,4683,5988,4136,148244,154088,27,8797,667
+105,宜蘭縣,10247,22349,14783,6383,4743,1399,769,607,14458,17717,0,872,115
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+112,宜蘭縣,11251,22523,11013,5164,3434,880,422,308,9876,11221,0,247,65
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+112,苗栗縣,13893,29208,12557,6025,5249,195,714,325,16591,16425,0,164,106
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+112,南投縣,11253,22883,10602,3288,4731,922,320,359,9122,9122,114,156,105
+112,雲林縣,14799,30604,15454,6719,5383,769,1006,305,23049,23832,0,206,161
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+112,屏東縣,17854,35817,15960,7301,5100,612,279,450,30157,29958,0,331,134
+112,臺東縣,4916,9949,4752,506,2058,1650,121,129,5807,5907,0,8,90
+112,花蓮縣,7313,15595,7484,3460,2800,972,5,322,16622,16532,0,137,96
+112,澎湖縣,1822,3632,1625,693,971,0,26,0,2702,2702,0,29,0
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+113,臺北市,50990,122987,64808,53247,21907,1665,413,2968,234053,223992,172,3113,590
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+113,臺中市,77511,165484,77345,36635,30749,1371,5705,3055,175722,175075,0,3970,624
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+113,高雄市,61751,131156,61242,31247,26786,914,3412,1444,121965,124137,43,4698,468
+113,宜蘭縣,10954,22157,11263,5227,3292,860,405,304,9388,10659,0,237,69
+113,新竹縣,18790,39379,17585,5054,4947,1130,999,523,10980,12951,0,161,201
+113,苗栗縣,13459,28315,13092,6104,5088,106,700,310,16438,16365,0,175,108
+113,彰化縣,29864,60625,28516,10028,12375,2407,1922,928,15787,15854,0,270,435
+113,南投縣,10944,22256,10999,3191,4494,856,206,335,9073,9073,147,170,109
+113,雲林縣,14534,29618,15584,6655,5026,694,949,252,22445,23301,0,236,157
+113,嘉義縣,8639,17154,8240,2490,2221,0,224,98,23133,27250,0,59,0
+113,屏東縣,17527,34969,16427,7017,4806,565,182,390,28810,28750,0,329,142
+113,臺東縣,4739,9790,4834,519,1913,1634,111,140,5645,5833,0,11,85
+113,花蓮縣,6943,15179,7507,3455,2530,1102,16,299,15861,15839,0,120,106
+113,澎湖縣,1814,3534,1666,682,854,0,22,0,2388,2651,0,12,0
+113,基隆市,7355,15951,7408,3263,2905,127,45,185,13383,13429,0,189,90
+113,新竹市,14063,32858,15928,9046,7575,421,369,606,48901,42763,0,108,0
+113,嘉義市,6997,14593,8017,5819,5922,447,939,300,11349,8734,0,57,227
+113,金門縣,2011,3928,1877,954,803,0,0,39,3823,3866,0,0,0
+113,連江縣,268,487,257,0,0,257,0,0,0,140,0,0,0
+114,新北市,81149,194670,96668,36359,23972,4106,221,2306,117768,117768,42,16892,243
+114,臺北市,47886,117650,68231,53020,21069,1626,415,2829,230483,230483,162,3140,564
+114,桃園市,61764,132964,66607,28850,25498,760,2636,1742,93462,93462,57,1154,285
+114,臺中市,74369,161332,82767,36484,29330,1354,5575,2772,174618,174618,0,3975,562
+114,臺南市,44318,91142,47883,21507,13301,2070,2128,1012,88863,88863,56,404,375
+114,高雄市,59174,127327,65631,30498,25072,820,3435,1329,118531,118531,0,5465,466
+114,宜蘭縣,10651,21605,11843,5046,3099,865,372,291,9143,9143,0,219,74
+114,新竹縣,18409,38373,18746,5267,4847,1160,1077,489,11340,11340,0,129,194
+114,苗栗縣,12852,27368,14041,6011,4587,44,641,285,15950,15950,0,159,100
+114,彰化縣,28486,58539,29788,9769,11956,2287,1656,758,15361,15361,0,279,429
+114,南投縣,10499,21608,11428,3121,4139,803,184,318,8947,8947,160,192,111
+114,雲林縣,13953,28798,16118,6500,4573,638,776,254,22453,22453,30,250,152
+114,嘉義縣,8270,16524,8509,2467,2208,0,117,93,22510,22510,0,81,0
+114,屏東縣,16988,34245,17225,6668,4547,504,162,371,27749,27749,0,298,151
+114,臺東縣,4553,9507,5035,502,1671,1580,95,139,5391,5391,0,10,85
+114,花蓮縣,6670,14809,7708,3328,2390,1115,7,301,15029,15029,0,156,115
+114,澎湖縣,1809,3434,1757,658,799,0,26,0,2202,2202,0,22,0
+114,基隆市,7020,15403,7827,3066,2530,127,26,168,13242,13242,0,154,83
+114,新竹市,13500,31460,16964,9222,7124,416,313,573,49039,49039,0,96,0
+114,嘉義市,6655,14126,8377,5680,5782,384,879,323,11103,11103,0,64,210
+114,金門縣,1867,3886,1948,950,752,0,0,32,3660,3660,0,0,0
+114,連江縣,235,488,247,0,0,252,0,0,0,0,0,0,0

projects/2026Fall進階專題六午/林守桀/week22_花蓮縣國小人數變化/main.py

@@ -0,0 +1,129 @@
+"""Lesson 21：用同一份公開資料練習排名、文字圖與跨年比較。"""
+
+import csv
+from pathlib import Path
+
+
+DATA_FILE = Path("data/students_by_county.csv")
+
+# 先執行一次，再依自己的問題修改這幾個條件。
+COUNTY = "花蓮縣"
+BEFORE_YEAR = "105"
+AFTER_YEAR = "114"
+FIELD = "國小[人]"
+TOP_N = 5
+
+
+# 以下工具已備好，可以先使用，再查詢函式裡的寫法。
+def load_rows(path=DATA_FILE):
+    """將 CSV 每列讀成 dict；兼容有 BOM 的 UTF-8 檔案。"""
+    with open(path, encoding="utf-8-sig", newline="") as file:
+        return list(csv.DictReader(file))
+
+
+def parse_count(value):
+    """數字文字轉成整數；空白、破折號與無效值回傳 None。"""
+    cleaned = (value or "").strip().replace(",", "")
+    if not cleaned or cleaned == "-":
+        return None
+    try:
+        return int(cleaned)
+    except ValueError:
+        return None
+
+
+def get_count(rows, school_year, county, field):
+    """查詢指定學年度、縣市與教育階段的人數；找不到回傳 None。"""
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        if row.get("縣市別", "").strip() == county:
+            return parse_count(row.get(field))
+    return None
+
+
+def count_by_county(rows, school_year, field):
+    """同一學年度的人數排名；未知值不當成 0。"""
+    totals = {}
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        county = row.get("縣市別", "").strip()
+        count = parse_count(row.get(field))
+        if county and count is not None:
+            totals[county] = count
+    return sorted(totals.items(), key=lambda item: item[1], reverse=True)
+
+
+def print_text_chart(results, limit=5):
+    """使用相同尺度畫文字長條，並保留可核對的人數。"""
+    visible = results[:max(0, limit)]
+    if not visible:
+        print("沒有符合條件的資料，請檢查學年度、欄位名稱與顯示筆數。")
+        return
+    largest = max(value for _, value in visible)
+    print("縣市       人數（人） | 比例長條")
+    for county, value in visible:
+        bar_length = round(value / largest * 24) if largest else 0
+        print(f"{county:<6} {value:>8,} | {'█' * bar_length}")
+    print("長條從 0 開始，最長為 24 格；仍以旁邊的實際數字核對。")
+
+
+def main():
+    rows = load_rows()
+    print("=== Lesson 21：比較與圖表 ===")
+    print(f"讀入 {len(rows)} 列資料")
+    if not rows:
+        print("CSV 沒有資料，請檢查檔案。")
+        return
+    print(f"欄位：{', '.join(rows[0])}")
+
+    # 第一部分：先觀察現成的排名圖，再換成自己的條件。
+    results = count_by_county(rows, AFTER_YEAR, FIELD)
+    print(f"\n{AFTER_YEAR} 學年度各縣市 {FIELD}（前 {TOP_N} 名）")
+    print_text_chart(results, TOP_N)
+    print("來源：教育部統計處｜各級學校縣市別學生人數（課堂 CSV）")
+    resultsB = count_by_county(rows,BEFORE_YEAR, FIELD)
+    
+    c = 0
+    for county, before in resultsB:
+        down = True
+        for year in range(106,110):
+            count = get_count(rows,str(year),county,FIELD)
+            if count is None or count >= before:
+                down = False
+                break
+            before = count
+        if down:
+            print(f"{county} 105–109 學年度逐年下降")
+            c += 1 
+    print(f"共{c}個")
+    
+    # 第二部分：兩個原始數字都查到以後，才做相減。
+    before = get_count(rows, BEFORE_YEAR, COUNTY, FIELD)
+    after = get_count(rows, AFTER_YEAR, COUNTY, FIELD)
+    print(f"\n{COUNTY} {FIELD}：{BEFORE_YEAR} → {AFTER_YEAR} 學年度")
+    if before is None or after is None:
+        print("找不到完整的兩筆人數，請核對年份、縣市與欄位；未知值不能當成 0。")
+        return
+    print(f"{BEFORE_YEAR} 學年度：{before:,} 人")
+    print(f"{AFTER_YEAR} 學年度：{after:,} 人")
+
+    # TODO：以「後來的人數」減去「原來的人數」，取代下面的 None。
+    change = after - before
+
+    if change is None:
+        print("請完成 change 的相減算式，再執行一次。")
+        return
+    print(f"增減人數：{change:+,} 人")
+    if change > 0:
+        print(f"在這兩個學年度之間增加 {change:,} 人。")
+    elif change < 0:
+        print(f"在這兩個學年度之間減少 {abs(change):,} 人。")
+    else:
+        print("這兩個學年度的人數相同。")
+    print("只比較兩個端點，還不能說中間每一年都增加或減少，也不能單靠此表判斷原因。")
+
+
+if __name__ == "__main__":
+    main()

projects/2026Fall進階專題六午/王三策/week22_各縣市國小人數變動率/DATA_SOURCE.md

@@ -0,0 +1,18 @@
+# 範例資料來源
+
+- 資料集：教育部統計處「各級學校縣市別學生人數」
+- 資料集頁面：https://data.gov.tw/dataset/40121
+- 原始 CSV：`data/students_by_county.csv`
+- 內容：104–114 學年度各縣市各教育階段的彙總學生人數。
+- 檔案共有 242 筆資料、15 個欄位，涵蓋 22 個縣市。
+- 授權：政府資料開放授權條款第 1 版；使用或改作時保留資料來源註記。
+
+## 下載同一份資料
+
+1. 開啟上方資料集頁面。
+2. 找到「資料資源下載網址」，按左側的 **CSV** 按鈕。旁邊的「檢視資料」是檔案說明。
+3. 下載的檔名是 `edu_B_1_4.csv`。本課把它改名為 `students_by_county.csv`，放在專案的 `data` 資料夾。
+
+課堂專案已附檔，不需要重新下載。網站之後可能更新年份；上課範例以本課提供的 104–114 學年度版本為準。
+
+這是彙總統計資料。它可以回答「多少人」或「不同地區、學年度的數值如何變化」，不能單獨說明變化的原因。若換成其他公開資料，請把來源網址、下載日期、欄位和單位補進本檔。

projects/2026Fall進階專題六午/王三策/week22_各縣市國小人數變動率/README.md

@@ -0,0 +1,21 @@
+# 各縣市國小人數變動率
+
+> 教師整理的 Demo 說明。學生原報告仍保留於教室。
+
+## 方法
+
+以 105 學年度為分母，計算至 114 學年度的百分比，找出變動率最低和最高的縣市。
+
+## 結果
+
+嘉義縣 −20.60%，新竹縣 +7.51%。
+
+## 資料來源和限制
+
+教育部統計處「各級學校縣市別學生人數」，見 DATA_SOURCE.md。
+
+這些數字描述資料中觀察到的變化，無法單靠這份資料判定原因。
+
+## Demo 修正
+
+修正縣市迴圈蓋掉原比較值、百分比符號與因果說法。

projects/2026Fall進階專題六午/王三策/week22_各縣市國小人數變動率/data/students_by_county.csv

@@ -0,0 +1,243 @@
+學年度,縣市別,幼兒園[人],國小[人],國中[人],高級中等學校-普通科[人],高級中等學校-專業群科[人],高級中等學校-綜合高中[人],高級中等學校-實用技能學程[人],高級中等學校-進修部[人],大專校院(全部計入校本部)[人],大專校院(跨縣市教學計入所在地縣市)[人],宗教研修學院[人],國中小進修部(補校)及大專進修學校及空大[人],特殊教育學校[人]
+104,新北市,73526,201970,116039,40566,41358,5773,1434,6816,161853,154484,138,17150,400
+104,臺北市,47269,118471,75015,60532,39235,4892,530,7152,267363,244091,42,9174,828
+104,桃園市,44367,128444,76299,29529,36060,4300,4963,7623,109869,120426,0,2532,438
+104,臺中市,65946,157272,97447,37771,54951,3027,3423,7885,192593,191962,0,10182,953
+104,臺南市,40731,92570,58160,25795,24022,6146,4557,2813,132736,135744,0,1601,533
+104,高雄市,49321,134949,83539,35600,39574,5499,6502,4915,149988,156110,12,9450,678
+104,宜蘭縣,9791,23227,16014,6409,4899,1471,805,732,14725,17952,0,811,129
+104,新竹縣,13997,36265,19150,4230,5487,2763,858,1436,17525,23665,0,653,230
+104,苗栗縣,10492,29940,18268,5922,8086,2136,1285,1247,21352,21352,0,903,136
+104,彰化縣,24073,68920,42767,11939,19919,4790,2755,3975,38990,38990,0,1309,670
+104,南投縣,9328,25439,17256,4504,8411,870,1236,960,12458,12458,0,555,126
+104,雲林縣,12818,35903,24178,8009,9430,1971,1563,698,26340,27035,0,1145,211
+104,嘉義縣,8175,22434,14440,2708,5244,515,1697,460,25071,30424,0,914,0
+104,屏東縣,13986,39629,26193,8977,10010,1381,855,1299,42083,42203,0,1406,185
+104,臺東縣,4319,11156,7227,513,2349,3224,188,329,5963,6008,0,54,101
+104,花蓮縣,6561,16538,10861,4168,4184,2682,93,673,19610,19562,0,284,170
+104,澎湖縣,1635,3972,2670,1018,1651,0,60,0,2984,2984,0,33,0
+104,基隆市,6091,17341,11496,5081,6555,416,365,656,16077,16077,0,2018,157
+104,新竹市,11697,29694,16662,8793,5764,3630,621,1785,51748,51050,0,249,0
+104,嘉義市,5918,16104,11640,6358,9204,1660,1846,842,18728,15324,0,268,316
+104,金門縣,1851,3679,2144,988,961,0,60,53,4389,4523,0,0,0
+104,連江縣,223,443,259,0,0,335,0,0,0,21,0,0,0
+105,新北市,77229,195706,106199,41342,39875,5791,1205,6119,157674,151012,136,16599,397
+105,臺北市,50079,116496,69178,59008,37749,4659,472,6294,267043,244062,53,8685,815
+105,桃園市,47794,124604,70471,29658,36600,3393,4944,7041,106343,116787,0,2675,448
+105,臺中市,72269,153062,89408,37764,54626,2042,3634,7160,191224,190633,0,10001,940
+105,臺南市,43250,89475,53089,26098,23331,5324,4362,2700,128882,131468,0,1429,508
+105,高雄市,54095,129914,76167,35688,39310,4683,5988,4136,148244,154088,27,8797,667
+105,宜蘭縣,10247,22349,14783,6383,4743,1399,769,607,14458,17717,0,872,115
+105,新竹縣,14995,35692,18044,5089,5565,1803,829,1392,16395,22667,0,607,230
+105,苗栗縣,11018,28579,16836,6157,8037,1852,1216,1124,20832,20794,0,707,129
+105,彰化縣,25336,65423,39679,12079,19434,4550,2799,3684,37422,37450,0,1160,623
+105,南投縣,9873,24180,15716,4461,8426,739,1226,791,12191,12191,13,536,149
+105,雲林縣,13080,34012,22308,8080,9369,1810,1527,658,25729,26405,0,1070,208
+105,嘉義縣,8490,20810,13153,2729,4953,519,1778,483,24448,29757,0,915,0
+105,屏東縣,14616,37482,24014,9246,9664,1091,811,1206,41174,41150,0,1487,189
+105,臺東縣,4510,10702,6682,537,2519,2847,182,303,5910,6091,0,37,111
+105,花蓮縣,6772,15914,10165,4144,4074,2404,64,598,19426,19510,0,257,171
+105,澎湖縣,1685,3756,2452,1000,1668,0,65,0,3018,3018,0,29,0
+105,基隆市,6451,16654,10279,5082,6395,383,373,535,15741,15741,0,2118,159
+105,新竹市,12544,29534,15683,9016,5783,3649,607,1677,50315,49211,0,282,0
+105,嘉義市,6220,15468,10634,6507,9047,1475,1892,777,18457,15053,0,251,329
+105,金門縣,1936,3618,2023,1009,1016,0,51,36,4515,4618,0,0,0
+105,連江縣,292,455,249,0,0,324,0,0,0,18,0,0,0
+106,新北市,81348,192321,100608,40999,37328,5581,917,5336,151475,145054,116,16615,385
+106,臺北市,52253,115679,66746,58742,35058,4072,377,5448,263668,241829,81,8120,779
+106,桃園市,51322,122590,67375,29822,35420,3032,4770,5965,102983,114101,0,2633,450
+106,臺中市,77619,150412,85244,37962,50784,2020,3836,6211,188641,188114,0,9450,897
+106,臺南市,46663,87329,50556,25817,22075,4418,4007,2540,124447,126610,0,1397,482
+106,高雄市,56968,125900,72395,35657,38273,3347,5579,3557,144540,149969,72,8142,673
+106,宜蘭縣,10639,21563,14108,6290,4513,1306,673,529,13546,16707,0,806,116
+106,新竹縣,16035,35578,17398,5351,5436,1431,869,1241,15259,20942,0,561,235
+106,苗栗縣,11727,27602,15835,6216,7835,1552,1221,934,19806,19674,0,425,135
+106,彰化縣,26724,62830,37275,12119,18398,4270,2726,3397,35163,35166,0,1099,565
+106,南投縣,10345,23221,14436,4525,8302,623,1114,679,11578,11578,28,530,145
+106,雲林縣,13617,32410,21017,7949,8666,1577,1451,667,25198,25932,0,1066,197
+106,嘉義縣,8649,19569,12207,2732,4964,495,1583,502,24088,29101,0,886,0
+106,屏東縣,15592,35645,22574,9068,9114,964,698,1105,39787,39639,0,1494,189
+106,臺東縣,4643,10385,6303,563,2543,2635,188,257,5860,5997,0,28,114
+106,花蓮縣,7017,15363,9614,4047,3875,2185,28,538,18762,18819,0,256,158
+106,澎湖縣,1766,3524,2362,970,1588,0,64,0,3008,3008,0,18,0
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+114,澎湖縣,1809,3434,1757,658,799,0,26,0,2202,2202,0,22,0
+114,基隆市,7020,15403,7827,3066,2530,127,26,168,13242,13242,0,154,83
+114,新竹市,13500,31460,16964,9222,7124,416,313,573,49039,49039,0,96,0
+114,嘉義市,6655,14126,8377,5680,5782,384,879,323,11103,11103,0,64,210
+114,金門縣,1867,3886,1948,950,752,0,0,32,3660,3660,0,0,0
+114,連江縣,235,488,247,0,0,252,0,0,0,0,0,0,0

projects/2026Fall進階專題六午/王三策/week22_各縣市國小人數變動率/main.py

@@ -0,0 +1,141 @@
+"""Lesson 21：用同一份公開資料練習排名、文字圖與跨年比較。"""
+import os
+print(os.getcwd())
+import csv
+from pathlib import Path
+
+
+DATA_FILE = Path("data/students_by_county.csv")
+
+# 先執行一次，再依自己的問題修改這幾個條件。
+COUNTY = "臺北市"
+BEFORE_YEAR = "105"  # 改為 105
+AFTER_YEAR = "114"
+FIELD = "國小[人]"
+TOP_N = 5
+
+
+# 以下工具已備好，可以先使用，再查詢函式裡的寫法。
+def load_rows(path=DATA_FILE):
+    """將 CSV 每列讀成 dict；兼容有 BOM 的 UTF-8 檔案。"""
+    with open(path, encoding="utf-8-sig", newline="") as file:
+        return list(csv.DictReader(file))
+
+
+def parse_count(value):
+    """數字文字轉成整數；空白、破折號與無效值回傳 None。"""
+    cleaned = (value or "").strip().replace(",", "")
+    if not cleaned or cleaned == "-":
+        return None
+    try:
+        return int(cleaned)
+    except ValueError:
+        return None
+
+
+def get_count(rows, school_year, county, field):
+    """查詢指定學年度、縣市與教育階段的人數；找不到回傳 None。"""
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        if row.get("縣市別", "").strip() == county:
+            return parse_count(row.get(field))
+    return None
+
+
+def count_by_county(rows, school_year, field):
+    """同一學年度的人數排名；未知值不當成 0。"""
+    totals = {}
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        county = row.get("縣市別", "").strip()
+        count = parse_count(row.get(field))
+        if county and count is not None:
+            totals[county] = count
+    return sorted(totals.items(), key=lambda item: item[1], reverse=True)
+
+
+def print_text_chart(results, limit=5):
+    """使用相同尺度畫文字長條，並保留可核對的人數。"""
+    visible = results[:max(0, limit)]
+    if not visible:
+        print("沒有符合條件的資料，請檢查學年度、欄位名稱與顯示筆數。")
+        return
+    largest = max(value for _, value in visible)
+    print("縣市       人數（人） | 比例長條")
+    for county, value in visible:
+        bar_length = round(value / largest * 24) if largest else 0
+        print(f"{county:<6} {value:>8,} | {'█' * bar_length}")
+    print("長條從 0 開始，最長為 24 格；仍以旁邊的實際數字核對。")
+
+
+def main():
+    rows = load_rows()
+    print("=== Lesson 21：比較與圖表 ===")
+    print(f"讀入 {len(rows)} 列資料")
+    if not rows:
+        print("CSV 沒有資料，請檢查檔案。")
+        return
+    print(f"欄位：{', '.join(rows[0])}")
+
+    # 第一部分：先觀察現成的排名圖，再換成自己的條件。
+    results = count_by_county(rows, AFTER_YEAR, FIELD)
+    print(f"\n{AFTER_YEAR} 學年度各縣市 {FIELD}（前 {TOP_N} 名）")
+    print_text_chart(results, TOP_N)
+    print("來源：教育部統計處｜各級學校縣市別學生人數（課堂 CSV）")
+
+    # 第二部分：兩個原始數字都查到以後，才做相減。
+    before = get_count(rows, BEFORE_YEAR, COUNTY, FIELD)
+    after = get_count(rows, AFTER_YEAR, COUNTY, FIELD)
+    print(f"\n{COUNTY} {FIELD}：{BEFORE_YEAR} → {AFTER_YEAR} 學年度")
+    if before is None or after is None:
+        print("找不到完整的兩筆人數，請核對年份、縣市與欄位；未知值不能當成 0。")
+        return
+    print(f"{BEFORE_YEAR} 學年度：{before:,} 人")
+    print(f"{AFTER_YEAR} 學年度：{after:,} 人")
+
+    # TODO：以「後來的人數」減去「原來的人數」，取代下面的 None。
+    print("各縣市降幅超過 10%：")
+    for county, base_count in count_by_county(rows, BEFORE_YEAR, FIELD):
+        later_count = get_count(rows, AFTER_YEAR, county, FIELD)
+        if base_count > 0 and later_count is not None:
+            county_percent = (later_count - base_count) / base_count * 100
+            if county_percent < -10:
+                print(f"{county}：減少 {abs(county_percent):.2f}%")
+    change = after - before
+    per = change / before * 100 if before else 0
+    print(f"{COUNTY}兩學年度比較：")
+    print(f"增減人數：{change:+,} 人")
+    if change > 0:
+        print(f"在這兩個學年度之間增加 {change:,} 人。")
+        print(f"在這兩個學年度之間增加 {per:.2f} %。")
+    elif change < 0:
+        print(f"在這兩個學年度之間減少 {abs(change):,} 人。")
+        print(f"在這兩個學年度之間減少 {abs(per):.2f}%。")
+    else:
+        print("這兩個學年度的人數相同。")
+    print("只比較兩個端點，還不能說中間每一年都增加或減少，也不能單靠此表判斷原因")
+    
+    
+    
+    
+    all_changes = []
+    for county, b_val in count_by_county(rows, BEFORE_YEAR, FIELD):
+        a_val = get_count(rows, AFTER_YEAR, county, FIELD)
+        if a_val is not None and b_val is not None and b_val > 0:
+            chg = a_val - b_val
+            percentage = (chg / b_val) * 100
+            all_changes.append((county, percentage, chg))
+    
+    if all_changes:
+        # 依百分比由小到大排序（負最多即減少最嚴重）
+        all_changes.sort(key=lambda x: x[1])
+        most_decrease = all_changes[0]
+        # 有減少的縣市中少子化/外移最不嚴重的（或增加最多的）
+        least_decrease = all_changes[-1]
+        print(f"\n學生人數變動率最低：{most_decrease[0]}，減少了 {abs(most_decrease[1]):.2f}%")
+        print(f"學生人數變動率最高：{least_decrease[0]}，變動率為 {least_decrease[1]:+.2f}%")
+
+if __name__ == "__main__":
+    main()

projects/2026Fall進階專題六午/王辭信/week22_臺北市國中人數與各縣市降幅/DATA_SOURCE.md

@@ -0,0 +1,18 @@
+# 範例資料來源
+
+- 資料集：教育部統計處「各級學校縣市別學生人數」
+- 資料集頁面：https://data.gov.tw/dataset/40121
+- 原始 CSV：`data/students_by_county.csv`
+- 內容：104–114 學年度各縣市各教育階段的彙總學生人數。
+- 檔案共有 242 筆資料、15 個欄位，涵蓋 22 個縣市。
+- 授權：政府資料開放授權條款第 1 版；使用或改作時保留資料來源註記。
+
+## 下載同一份資料
+
+1. 開啟上方資料集頁面。
+2. 找到「資料資源下載網址」，按左側的 **CSV** 按鈕。旁邊的「檢視資料」是檔案說明。
+3. 下載的檔名是 `edu_B_1_4.csv`。本課把它改名為 `students_by_county.csv`，放在專案的 `data` 資料夾。
+
+課堂專案已附檔，不需要重新下載。網站之後可能更新年份；上課範例以本課提供的 104–114 學年度版本為準。
+
+這是彙總統計資料。它可以回答「多少人」或「不同地區、學年度的數值如何變化」，不能單獨說明變化的原因。若換成其他公開資料，請把來源網址、下載日期、欄位和單位補進本檔。

projects/2026Fall進階專題六午/王辭信/week22_臺北市國中人數與各縣市降幅/README.md

@@ -0,0 +1,21 @@
+# 臺北市國中人數與各縣市降幅
+
+> 教師整理的 Demo 說明。學生原報告仍保留於教室。
+
+## 方法
+
+比較 104、114 學年度臺北市國中人數，另外列出全國降幅超過 10% 的縣市。
+
+## 結果
+
+臺北市 75,015 → 68,231 人，差額 -6,784 人（-9.04%）。
+
+## 資料來源和限制
+
+教育部統計處「各級學校縣市別學生人數」，見 DATA_SOURCE.md。
+
+這些數字描述資料中觀察到的變化，無法單靠這份資料判定原因。
+
+## Demo 修正
+
+分開臺北市差值與縣市迴圈變數；補上正確的百分比單位。

projects/2026Fall進階專題六午/王辭信/week22_臺北市國中人數與各縣市降幅/data/students_by_county.csv

@@ -0,0 +1,243 @@
+學年度,縣市別,幼兒園[人],國小[人],國中[人],高級中等學校-普通科[人],高級中等學校-專業群科[人],高級中等學校-綜合高中[人],高級中等學校-實用技能學程[人],高級中等學校-進修部[人],大專校院(全部計入校本部)[人],大專校院(跨縣市教學計入所在地縣市)[人],宗教研修學院[人],國中小進修部(補校)及大專進修學校及空大[人],特殊教育學校[人]
+104,新北市,73526,201970,116039,40566,41358,5773,1434,6816,161853,154484,138,17150,400
+104,臺北市,47269,118471,75015,60532,39235,4892,530,7152,267363,244091,42,9174,828
+104,桃園市,44367,128444,76299,29529,36060,4300,4963,7623,109869,120426,0,2532,438
+104,臺中市,65946,157272,97447,37771,54951,3027,3423,7885,192593,191962,0,10182,953
+104,臺南市,40731,92570,58160,25795,24022,6146,4557,2813,132736,135744,0,1601,533
+104,高雄市,49321,134949,83539,35600,39574,5499,6502,4915,149988,156110,12,9450,678
+104,宜蘭縣,9791,23227,16014,6409,4899,1471,805,732,14725,17952,0,811,129
+104,新竹縣,13997,36265,19150,4230,5487,2763,858,1436,17525,23665,0,653,230
+104,苗栗縣,10492,29940,18268,5922,8086,2136,1285,1247,21352,21352,0,903,136
+104,彰化縣,24073,68920,42767,11939,19919,4790,2755,3975,38990,38990,0,1309,670
+104,南投縣,9328,25439,17256,4504,8411,870,1236,960,12458,12458,0,555,126
+104,雲林縣,12818,35903,24178,8009,9430,1971,1563,698,26340,27035,0,1145,211
+104,嘉義縣,8175,22434,14440,2708,5244,515,1697,460,25071,30424,0,914,0
+104,屏東縣,13986,39629,26193,8977,10010,1381,855,1299,42083,42203,0,1406,185
+104,臺東縣,4319,11156,7227,513,2349,3224,188,329,5963,6008,0,54,101
+104,花蓮縣,6561,16538,10861,4168,4184,2682,93,673,19610,19562,0,284,170
+104,澎湖縣,1635,3972,2670,1018,1651,0,60,0,2984,2984,0,33,0
+104,基隆市,6091,17341,11496,5081,6555,416,365,656,16077,16077,0,2018,157
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+104,嘉義市,5918,16104,11640,6358,9204,1660,1846,842,18728,15324,0,268,316
+104,金門縣,1851,3679,2144,988,961,0,60,53,4389,4523,0,0,0
+104,連江縣,223,443,259,0,0,335,0,0,0,21,0,0,0
+105,新北市,77229,195706,106199,41342,39875,5791,1205,6119,157674,151012,136,16599,397
+105,臺北市,50079,116496,69178,59008,37749,4659,472,6294,267043,244062,53,8685,815
+105,桃園市,47794,124604,70471,29658,36600,3393,4944,7041,106343,116787,0,2675,448
+105,臺中市,72269,153062,89408,37764,54626,2042,3634,7160,191224,190633,0,10001,940
+105,臺南市,43250,89475,53089,26098,23331,5324,4362,2700,128882,131468,0,1429,508
+105,高雄市,54095,129914,76167,35688,39310,4683,5988,4136,148244,154088,27,8797,667
+105,宜蘭縣,10247,22349,14783,6383,4743,1399,769,607,14458,17717,0,872,115
+105,新竹縣,14995,35692,18044,5089,5565,1803,829,1392,16395,22667,0,607,230
+105,苗栗縣,11018,28579,16836,6157,8037,1852,1216,1124,20832,20794,0,707,129
+105,彰化縣,25336,65423,39679,12079,19434,4550,2799,3684,37422,37450,0,1160,623
+105,南投縣,9873,24180,15716,4461,8426,739,1226,791,12191,12191,13,536,149
+105,雲林縣,13080,34012,22308,8080,9369,1810,1527,658,25729,26405,0,1070,208
+105,嘉義縣,8490,20810,13153,2729,4953,519,1778,483,24448,29757,0,915,0
+105,屏東縣,14616,37482,24014,9246,9664,1091,811,1206,41174,41150,0,1487,189
+105,臺東縣,4510,10702,6682,537,2519,2847,182,303,5910,6091,0,37,111
+105,花蓮縣,6772,15914,10165,4144,4074,2404,64,598,19426,19510,0,257,171
+105,澎湖縣,1685,3756,2452,1000,1668,0,65,0,3018,3018,0,29,0
+105,基隆市,6451,16654,10279,5082,6395,383,373,535,15741,15741,0,2118,159
+105,新竹市,12544,29534,15683,9016,5783,3649,607,1677,50315,49211,0,282,0
+105,嘉義市,6220,15468,10634,6507,9047,1475,1892,777,18457,15053,0,251,329
+105,金門縣,1936,3618,2023,1009,1016,0,51,36,4515,4618,0,0,0
+105,連江縣,292,455,249,0,0,324,0,0,0,18,0,0,0
+106,新北市,81348,192321,100608,40999,37328,5581,917,5336,151475,145054,116,16615,385
+106,臺北市,52253,115679,66746,58742,35058,4072,377,5448,263668,241829,81,8120,779
+106,桃園市,51322,122590,67375,29822,35420,3032,4770,5965,102983,114101,0,2633,450
+106,臺中市,77619,150412,85244,37962,50784,2020,3836,6211,188641,188114,0,9450,897
+106,臺南市,46663,87329,50556,25817,22075,4418,4007,2540,124447,126610,0,1397,482
+106,高雄市,56968,125900,72395,35657,38273,3347,5579,3557,144540,149969,72,8142,673
+106,宜蘭縣,10639,21563,14108,6290,4513,1306,673,529,13546,16707,0,806,116
+106,新竹縣,16035,35578,17398,5351,5436,1431,869,1241,15259,20942,0,561,235
+106,苗栗縣,11727,27602,15835,6216,7835,1552,1221,934,19806,19674,0,425,135
+106,彰化縣,26724,62830,37275,12119,18398,4270,2726,3397,35163,35166,0,1099,565
+106,南投縣,10345,23221,14436,4525,8302,623,1114,679,11578,11578,28,530,145
+106,雲林縣,13617,32410,21017,7949,8666,1577,1451,667,25198,25932,0,1066,197
+106,嘉義縣,8649,19569,12207,2732,4964,495,1583,502,24088,29101,0,886,0
+106,屏東縣,15592,35645,22574,9068,9114,964,698,1105,39787,39639,0,1494,189
+106,臺東縣,4643,10385,6303,563,2543,2635,188,257,5860,5997,0,28,114
+106,花蓮縣,7017,15363,9614,4047,3875,2185,28,538,18762,18819,0,256,158
+106,澎湖縣,1766,3524,2362,970,1588,0,64,0,3008,3008,0,18,0
+106,基隆市,6909,15944,9635,4696,5852,349,412,437,15211,15211,0,2208,131
+106,新竹市,13284,29635,15414,9300,5680,3397,559,1518,48359,47203,0,280,0
+106,嘉義市,6466,15068,9996,6407,8940,1371,1922,693,18014,14659,0,230,302
+106,金門縣,2026,3619,1948,1007,1005,0,47,52,4501,4562,0,0,0
+106,連江縣,292,474,227,0,0,304,0,0,0,19,0,0,0
+107,新北市,83960,195862,95923,39153,34275,5128,700,4693,147293,141046,89,17056,318
+107,臺北市,54229,118097,64651,57381,31239,3316,302,4712,259340,239263,124,7409,739
+107,桃園市,54358,124639,64734,29262,33257,2544,4422,5138,101858,113066,0,2628,419
+107,臺中市,79891,153260,81865,37422,45640,1970,4119,5479,186363,185886,0,9543,807
+107,臺南市,47210,88745,48570,24629,19920,3480,3594,2101,120215,121598,47,1342,446
+107,高雄市,57683,126527,69362,34231,36231,2134,5094,3021,141008,146140,128,7742,625
+107,宜蘭縣,10876,21515,13233,5981,4325,1233,610,555,12864,15850,0,816,103
+107,新竹縣,16412,36512,16990,5204,5121,1174,850,949,14411,19541,0,545,241
+107,苗栗縣,12027,27778,14967,6182,7363,1152,1206,867,18887,18704,0,219,118
+107,彰化縣,29513,62367,35150,11949,17139,3951,2689,2712,33376,33328,0,870,511
+107,南投縣,10617,22763,13531,4269,7575,637,970,588,10926,10926,50,470,137
+107,雲林縣,14170,31645,19840,7607,7833,1273,1403,642,24836,25598,0,1038,202
+107,嘉義縣,8865,18736,11450,2700,4597,426,1336,399,27312,31702,0,979,0
+107,屏東縣,16004,35146,21110,8665,8086,828,640,1095,38794,38541,0,1532,173
+107,臺東縣,4733,10189,6052,562,2622,2349,185,275,5757,5814,0,37,108
+107,花蓮縣,7160,15235,9102,3975,3725,1780,72,491,18269,18301,0,269,143
+107,澎湖縣,1803,3472,2200,897,1542,0,44,0,3025,3025,0,18,0
+107,基隆市,7169,15896,9031,4093,5088,338,411,413,14802,14802,0,2162,114
+107,新竹市,13773,30866,15214,9256,5875,2906,533,1358,47161,46003,0,246,0
+107,嘉義市,6628,15090,9351,6298,8298,1214,1865,589,14022,11234,0,208,288
+107,金門縣,2037,3729,1863,976,1018,0,34,47,4303,4374,0,0,0
+107,連江縣,286,482,220,0,0,285,0,0,0,80,0,0,0
+108,新北市,87311,198588,93426,37425,30732,4471,600,4028,141670,135795,81,17747,271
+108,臺北市,56635,120623,64558,56217,26944,2641,323,4024,256209,237838,148,7326,653
+108,桃園市,58589,126902,63378,29030,30448,1781,3993,4183,99870,110856,0,2639,409
+108,臺中市,81908,155376,80549,36466,39657,1806,4435,4760,184268,183875,0,9967,702
+108,臺南市,47967,90188,47473,23228,17808,2843,3121,1912,115057,115794,67,1578,408
+108,高雄市,60483,127513,67579,32753,33865,1212,4279,2681,138258,143051,171,7619,566
+108,宜蘭縣,11389,21698,12534,5663,4093,1103,601,581,12197,14880,0,689,86
+108,新竹縣,17325,37203,16909,5029,4977,918,824,760,13314,17919,0,584,213
+108,苗栗縣,13390,27856,14515,5933,6656,971,1083,769,18246,18018,0,228,114
+108,彰化縣,31301,62052,33185,11609,15924,3582,2643,2113,31147,31147,0,817,493
+108,南投縣,11295,22689,12793,3907,6876,778,796,561,10214,10214,58,494,123
+108,雲林縣,14988,31117,18968,7225,6736,1182,1285,530,24603,25358,0,817,193
+108,嘉義縣,9097,18355,10668,2636,4058,352,1080,333,26309,30480,0,1095,0
+108,屏東縣,17157,34688,20054,8123,7020,700,562,866,36734,36549,0,1310,168
+108,臺東縣,4853,9975,5805,541,2533,2105,187,237,5842,5863,0,33,114
+108,花蓮縣,7531,15217,8567,3810,3504,1485,20,434,18027,18040,0,289,127
+108,澎湖縣,1866,3472,2062,833,1368,0,52,0,3051,3051,0,36,0
+108,基隆市,7506,15862,8704,3502,4334,270,323,370,14561,14561,0,2061,114
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+109,臺北市,58312,122605,65349,55247,24765,2264,328,3646,256492,239317,154,4010,633
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+109,花蓮縣,7601,15194,8248,3696,3356,1212,14,419,17821,17714,0,192,110
+109,澎湖縣,1848,3446,1902,818,1283,0,47,0,3047,3047,0,33,0
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+110,彰化縣,31533,61364,30638,10593,14115,3062,2428,1482,25049,25049,0,381,496
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+110,雲林縣,15011,30256,17466,6900,5978,978,1153,399,24124,24936,0,269,180
+110,嘉義縣,9198,17571,9219,2652,2692,74,657,138,24808,28824,0,92,0
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+110,臺東縣,4937,9768,5322,577,2341,1786,151,160,6095,6105,0,19,99
+110,花蓮縣,7687,15242,8045,3608,3276,987,16,374,17714,17588,0,171,103
+110,澎湖縣,1853,3485,1810,776,1189,0,41,0,3063,3063,0,30,0
+110,基隆市,7961,15795,8125,3255,3598,195,156,274,15000,15000,0,231,107
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+110,嘉義市,7302,14883,8456,6038,6502,600,1594,375,12747,10384,0,78,207
+110,金門縣,2194,3878,1871,940,828,0,0,46,4215,4284,0,0,0
+110,連江縣,292,492,247,0,0,232,0,0,0,48,0,0,0
+111,新北市,88525,207675,87567,36341,27082,3983,282,2660,129608,125103,69,16834,252
+111,臺北市,55777,127285,63593,53909,22367,1690,376,3139,244638,234009,175,3305,583
+111,桃園市,62603,135930,59783,28878,26777,752,2852,2508,96681,107419,43,1092,321
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+111,臺南市,48170,95050,44319,21835,15310,2307,2461,1416,101751,102225,68,639,393
+111,高雄市,63808,132841,61145,31388,28889,987,3032,1767,130544,134435,118,5064,483
+111,宜蘭縣,11243,22238,11253,5297,3685,916,473,385,10345,11767,0,249,81
+111,新竹縣,19065,39663,16837,4983,4707,873,862,605,11119,14069,0,119,204
+111,苗栗縣,13742,29098,12944,6063,5488,262,775,384,17239,17071,0,155,113
+111,彰化縣,30784,62313,29093,10370,13124,2801,2293,1249,21299,21299,0,260,480
+111,南投縣,11322,22789,10915,3344,4990,991,436,420,9165,9165,86,162,105
+111,雲林縣,14710,30506,16394,6807,5802,878,1068,340,23820,24677,0,218,163
+111,嘉義縣,8811,17658,8625,2613,2277,0,462,105,23901,27830,0,75,0
+111,屏東縣,17798,35286,16731,7658,5470,644,328,518,32324,32114,0,298,141
+111,臺東縣,4907,9976,4962,546,2243,1742,140,149,5854,5958,0,12,99
+111,花蓮縣,7407,15530,7741,3538,3112,913,7,359,17143,17038,0,139,101
+111,澎湖縣,1788,3548,1697,733,1082,0,31,0,2927,2927,0,29,0
+111,基隆市,7733,16146,7644,3289,3321,170,121,224,14190,14190,0,162,92
+111,新竹市,14456,33869,15530,8716,7225,704,426,835,50067,44047,0,104,0
+111,嘉義市,7143,15123,8126,5925,6159,523,1363,310,11958,9656,0,50,203
+111,金門縣,2151,3909,1823,939,807,0,0,44,4175,4243,0,0,0
+111,連江縣,290,480,245,0,0,265,0,0,0,27,0,0,0
+112,新北市,88341,208980,85762,36496,26180,3948,254,2371,121961,117829,46,16626,243
+112,臺北市,53918,127398,62422,53653,21986,1648,456,2982,237221,228032,159,3289,572
+112,桃園市,63995,138435,58718,29096,26703,740,2731,2016,94438,104594,56,1092,310
+112,臺中市,79789,168752,73448,36378,31315,1380,5568,3166,177725,177187,0,4035,640
+112,臺南市,47927,96383,42710,21844,14793,2258,2295,1231,94711,95217,59,605,387
+112,高雄市,63390,134605,58888,31351,27449,1027,3129,1629,124633,127985,77,4930,471
+112,宜蘭縣,11251,22523,11013,5164,3434,880,422,308,9876,11221,0,247,65
+112,新竹縣,18821,40410,16537,5062,4741,1006,907,533,10596,13208,0,137,210
+112,苗栗縣,13893,29208,12557,6025,5249,195,714,325,16591,16425,0,164,106
+112,彰化縣,30602,62675,27965,10231,12599,2596,2035,1123,17722,17722,0,249,446
+112,南投縣,11253,22883,10602,3288,4731,922,320,359,9122,9122,114,156,105
+112,雲林縣,14799,30604,15454,6719,5383,769,1006,305,23049,23832,0,206,161
+112,嘉義縣,8757,17664,8216,2535,2276,0,326,98,23233,27497,0,67,0
+112,屏東縣,17854,35817,15960,7301,5100,612,279,450,30157,29958,0,331,134
+112,臺東縣,4916,9949,4752,506,2058,1650,121,129,5807,5907,0,8,90
+112,花蓮縣,7313,15595,7484,3460,2800,972,5,322,16622,16532,0,137,96
+112,澎湖縣,1822,3632,1625,693,971,0,26,0,2702,2702,0,29,0
+112,���隆市,7703,16303,7270,3292,3083,136,59,222,13813,13813,0,182,80
+112,新竹市,14584,34035,15109,8810,7432,552,378,731,49073,42827,0,111,0
+112,嘉義市,7288,15035,7760,5899,5861,470,1126,298,11727,9060,0,42,218
+112,金門縣,2087,3988,1795,939,778,0,0,41,4050,4105,0,0,0
+112,連江縣,278,496,252,0,0,269,0,0,0,54,0,0,0
+113,新北市,85532,202483,90131,36744,25707,3992,242,2340,119190,116885,28,16888,222
+113,臺北市,50990,122987,64808,53247,21907,1665,413,2968,234053,223992,172,3113,590
+113,桃園市,63421,135942,61743,29186,26245,770,2661,1844,94684,104871,54,1106,293
+113,臺中市,77511,165484,77345,36635,30749,1371,5705,3055,175722,175075,0,3970,624
+113,臺南市,46610,93966,44331,21940,14353,2291,2245,1106,91347,91947,53,564,377
+113,高雄市,61751,131156,61242,31247,26786,914,3412,1444,121965,124137,43,4698,468
+113,宜蘭縣,10954,22157,11263,5227,3292,860,405,304,9388,10659,0,237,69
+113,新竹縣,18790,39379,17585,5054,4947,1130,999,523,10980,12951,0,161,201
+113,苗栗縣,13459,28315,13092,6104,5088,106,700,310,16438,16365,0,175,108
+113,彰化縣,29864,60625,28516,10028,12375,2407,1922,928,15787,15854,0,270,435
+113,南投縣,10944,22256,10999,3191,4494,856,206,335,9073,9073,147,170,109
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+113,臺東縣,4739,9790,4834,519,1913,1634,111,140,5645,5833,0,11,85
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+113,澎湖縣,1814,3534,1666,682,854,0,22,0,2388,2651,0,12,0
+113,基隆市,7355,15951,7408,3263,2905,127,45,185,13383,13429,0,189,90
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+113,金門縣,2011,3928,1877,954,803,0,0,39,3823,3866,0,0,0
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+114,宜蘭縣,10651,21605,11843,5046,3099,865,372,291,9143,9143,0,219,74
+114,新竹縣,18409,38373,18746,5267,4847,1160,1077,489,11340,11340,0,129,194
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+114,連江縣,235,488,247,0,0,252,0,0,0,0,0,0,0

projects/2026Fall進階專題六午/王辭信/week22_臺北市國中人數與各縣市降幅/main.py

@@ -0,0 +1,119 @@
+"""Lesson 21：用同一份公開資料練習排名、文字圖與跨年比較。"""
+
+import csv
+from pathlib import Path
+
+
+DATA_FILE = Path("data/students_by_county.csv")
+
+# 先執行一次，再依自己的問題修改這幾個條件。
+COUNTY = "臺北市"
+BEFORE_YEAR = "104"
+AFTER_YEAR = "114"
+FIELD = "國中[人]"
+TOP_N = 5
+
+
+# 以下工具已備好，可以先使用，再查詢函式裡的寫法。
+def load_rows(path=DATA_FILE):
+    """將 CSV 每列讀成 dict；兼容有 BOM 的 UTF-8 檔案。"""
+    with open(path, encoding="utf-8-sig", newline="") as file:
+        return list(csv.DictReader(file))
+
+
+def parse_count(value):
+    """數字文字轉成整數；空白、破折號與無效值回傳 None。"""
+    cleaned = (value or "").strip().replace(",", "")
+    if not cleaned or cleaned == "-":
+        return None
+    try:
+        return int(cleaned)
+    except ValueError:
+        return None
+
+
+def get_count(rows, school_year, county, field):
+    """查詢指定學年度、縣市與教育階段的人數；找不到回傳 None。"""
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        if row.get("縣市別", "").strip() == county:
+            return parse_count(row.get(field))
+    return None
+
+
+def count_by_county(rows, school_year, field):
+    """同一學年度的人數排名；未知值不當成 0。"""
+    totals = {}
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        county = row.get("縣市別", "").strip()
+        count = parse_count(row.get(field))
+        if county and count is not None:
+            totals[county] = count
+    return sorted(totals.items(), key=lambda item: item[1], reverse=True)
+
+
+def print_text_chart(results, limit=5):
+    """使用相同尺度畫文字長條，並保留可核對的人數。"""
+    visible = results[:max(0, limit)]
+    if not visible:
+        print("沒有符合條件的資料，請檢查學年度、欄位名稱與顯示筆數。")
+        return
+    largest = max(value for _, value in visible)
+    print("縣市       人數（人） | 比例長條")
+    for county, value in visible:
+        bar_length = round(value / largest * 24) if largest else 0
+        print(f"{county:<6} {value:>8,} | {'█' * bar_length}")
+    print("長條從 0 開始，最長為 24 格；仍以旁邊的實際數字核對。")
+
+
+def main():
+    rows = load_rows()
+    print("=== Lesson 21：比較與圖表 ===")
+    print(f"讀入 {len(rows)} 列資料")
+    if not rows:
+        print("CSV 沒有資料，請檢查檔案。")
+        return
+    print(f"欄位：{', '.join(rows[0])}")
+
+    # 第一部分：先觀察現成的排名圖，再換成自己的條件。
+    results = count_by_county(rows, AFTER_YEAR, FIELD)
+    print(f"\n{AFTER_YEAR} 學年度各縣市 {FIELD}（前 {TOP_N} 名）")
+    print_text_chart(results, TOP_N)
+    print("來源：教育部統計處｜各級學校縣市別學生人數（課堂 CSV）")
+
+    # 第二部分：兩個原始數字都查到以後，才做相減。
+    before = get_count(rows, BEFORE_YEAR, COUNTY, FIELD)
+    after = get_count(rows, AFTER_YEAR, COUNTY, FIELD)
+    print(f"\n{COUNTY} {FIELD}：{BEFORE_YEAR} → {AFTER_YEAR} 學年度")
+    if before is None or after is None:
+        print("找不到完整的兩筆人數，請核對年份、縣市與欄位；未知值不能當成 0。")
+        return
+    print(f"{BEFORE_YEAR} 學年度：{before:,} 人")
+    print(f"{AFTER_YEAR} 學年度：{after:,} 人")
+    print("各縣市降幅超過 10%：")
+    for county, base_count in count_by_county(rows, BEFORE_YEAR, FIELD):
+        later_count = get_count(rows, AFTER_YEAR, county, FIELD)
+        if base_count > 0 and later_count is not None:
+            county_percent = (later_count - base_count) / base_count * 100
+            if county_percent < -10:
+                print(f"{county}：減少 {abs(county_percent):.2f}%")
+    change = after - before
+    percent = change / before * 100 if before else 0
+    print(f"{COUNTY}兩學年度比較：")
+    print(f"增減人數：{change:+,} 人")
+    if change > 0:
+        print(f"在這兩個學年度之間增加 {change:,} 人。")
+        print(f"在這兩個學年度之間增加 {percent:.2f}%。")
+    elif change < 0:
+        print(f"在這兩個學年度之間減少 {abs(change):,} 人。")
+        print(f"在這兩個學年度之間減少 {abs(percent):.2f} %。")
+    else:
+        print("這兩個學年度的人數相同。")
+    print("只比較兩個端點，還不能說中間每一年都增加或減少，也不能單靠此表判斷原因。")
+
+
+if __name__ == "__main__":
+    main()

projects/2026Fall進階專題六午/胡惟媗/week22_各縣市大專校院人數降幅/DATA_SOURCE.md

@@ -0,0 +1,18 @@
+# 範例資料來源
+
+- 資料集：教育部統計處「各級學校縣市別學生人數」
+- 資料集頁面：https://data.gov.tw/dataset/40121
+- 原始 CSV：`data/students_by_county.csv`
+- 內容：104–114 學年度各縣市各教育階段的彙總學生人數。
+- 檔案共有 242 筆資料、15 個欄位，涵蓋 22 個縣市。
+- 授權：政府資料開放授權條款第 1 版；使用或改作時保留資料來源註記。
+
+## 下載同一份資料
+
+1. 開啟上方資料集頁面。
+2. 找到「資料資源下載網址」，按左側的 **CSV** 按鈕。旁邊的「檢視資料」是檔案說明。
+3. 下載的檔名是 `edu_B_1_4.csv`。本課把它改名為 `students_by_county.csv`，放在專案的 `data` 資料夾。
+
+課堂專案已附檔，不需要重新下載。網站之後可能更新年份；上課範例以本課提供的 104–114 學年度版本為準。
+
+這是彙總統計資料。它可以回答「多少人」或「不同地區、學年度的數值如何變化」，不能單獨說明變化的原因。若換成其他公開資料，請把來源網址、下載日期、欄位和單位補進本檔。

projects/2026Fall進階專題六午/胡惟媗/week22_各縣市大專校院人數降幅/README.md

@@ -0,0 +1,21 @@
+# 哪個縣市大專校院學生人數減少最多
+
+> 教師整理的 Demo 說明。學生原報告仍保留於教室。
+
+## 方法
+
+比較 113、114 學年度，使用大專校院人數全部計入校本部的欄位。
+
+## 結果
+
+臺北市 234,053 → 230,483 人，減少 3,570 人。
+
+## 資料來源和限制
+
+教育部統計處「各級學校縣市別學生人數」，見 DATA_SOURCE.md。
+
+這些數字描述資料中觀察到的變化，無法單靠這份資料判定原因。
+
+## Demo 修正
+
+核對程式與報告；標明按校本部計算。

projects/2026Fall進階專題六午/胡惟媗/week22_各縣市大專校院人數降幅/data/students_by_county.csv

@@ -0,0 +1,243 @@
+學年度,縣市別,幼兒園[人],國小[人],國中[人],高級中等學校-普通科[人],高級中等學校-專業群科[人],高級中等學校-綜合高中[人],高級中等學校-實用技能學程[人],高級中等學校-進修部[人],大專校院(全部計入校本部)[人],大專校院(跨縣市教學計入所在地縣市)[人],宗教研修學院[人],國中小進修部(補校)及大專進修學校及空大[人],特殊教育學校[人]
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+109,彰化縣,32060,61453,31796,10988,15106,3324,2598,1737,28036,28036,0,455,498
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+110,澎湖縣,1853,3485,1810,776,1189,0,41,0,3063,3063,0,30,0
+110,基隆市,7961,15795,8125,3255,3598,195,156,274,15000,15000,0,231,107
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+110,連江縣,292,492,247,0,0,232,0,0,0,48,0,0,0
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+111,臺北市,55777,127285,63593,53909,22367,1690,376,3139,244638,234009,175,3305,583
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+111,高雄市,63808,132841,61145,31388,28889,987,3032,1767,130544,134435,118,5064,483
+111,宜蘭縣,11243,22238,11253,5297,3685,916,473,385,10345,11767,0,249,81
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+111,彰化縣,30784,62313,29093,10370,13124,2801,2293,1249,21299,21299,0,260,480
+111,南投縣,11322,22789,10915,3344,4990,991,436,420,9165,9165,86,162,105
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+111,屏東縣,17798,35286,16731,7658,5470,644,328,518,32324,32114,0,298,141
+111,臺東縣,4907,9976,4962,546,2243,1742,140,149,5854,5958,0,12,99
+111,花蓮縣,7407,15530,7741,3538,3112,913,7,359,17143,17038,0,139,101
+111,澎湖縣,1788,3548,1697,733,1082,0,31,0,2927,2927,0,29,0
+111,基隆市,7733,16146,7644,3289,3321,170,121,224,14190,14190,0,162,92
+111,新竹市,14456,33869,15530,8716,7225,704,426,835,50067,44047,0,104,0
+111,嘉義市,7143,15123,8126,5925,6159,523,1363,310,11958,9656,0,50,203
+111,金門縣,2151,3909,1823,939,807,0,0,44,4175,4243,0,0,0
+111,連江縣,290,480,245,0,0,265,0,0,0,27,0,0,0
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+112,臺北市,53918,127398,62422,53653,21986,1648,456,2982,237221,228032,159,3289,572
+112,桃園市,63995,138435,58718,29096,26703,740,2731,2016,94438,104594,56,1092,310
+112,臺中市,79789,168752,73448,36378,31315,1380,5568,3166,177725,177187,0,4035,640
+112,臺南市,47927,96383,42710,21844,14793,2258,2295,1231,94711,95217,59,605,387
+112,高雄市,63390,134605,58888,31351,27449,1027,3129,1629,124633,127985,77,4930,471
+112,宜蘭縣,11251,22523,11013,5164,3434,880,422,308,9876,11221,0,247,65
+112,新竹縣,18821,40410,16537,5062,4741,1006,907,533,10596,13208,0,137,210
+112,苗栗縣,13893,29208,12557,6025,5249,195,714,325,16591,16425,0,164,106
+112,彰化縣,30602,62675,27965,10231,12599,2596,2035,1123,17722,17722,0,249,446
+112,南投縣,11253,22883,10602,3288,4731,922,320,359,9122,9122,114,156,105
+112,雲林縣,14799,30604,15454,6719,5383,769,1006,305,23049,23832,0,206,161
+112,嘉義縣,8757,17664,8216,2535,2276,0,326,98,23233,27497,0,67,0
+112,屏東縣,17854,35817,15960,7301,5100,612,279,450,30157,29958,0,331,134
+112,臺東縣,4916,9949,4752,506,2058,1650,121,129,5807,5907,0,8,90
+112,花蓮縣,7313,15595,7484,3460,2800,972,5,322,16622,16532,0,137,96
+112,澎湖縣,1822,3632,1625,693,971,0,26,0,2702,2702,0,29,0
+112,���隆市,7703,16303,7270,3292,3083,136,59,222,13813,13813,0,182,80
+112,新竹市,14584,34035,15109,8810,7432,552,378,731,49073,42827,0,111,0
+112,嘉義市,7288,15035,7760,5899,5861,470,1126,298,11727,9060,0,42,218
+112,金門縣,2087,3988,1795,939,778,0,0,41,4050,4105,0,0,0
+112,連江縣,278,496,252,0,0,269,0,0,0,54,0,0,0
+113,新北市,85532,202483,90131,36744,25707,3992,242,2340,119190,116885,28,16888,222
+113,臺北市,50990,122987,64808,53247,21907,1665,413,2968,234053,223992,172,3113,590
+113,桃園市,63421,135942,61743,29186,26245,770,2661,1844,94684,104871,54,1106,293
+113,臺中市,77511,165484,77345,36635,30749,1371,5705,3055,175722,175075,0,3970,624
+113,臺南市,46610,93966,44331,21940,14353,2291,2245,1106,91347,91947,53,564,377
+113,高雄市,61751,131156,61242,31247,26786,914,3412,1444,121965,124137,43,4698,468
+113,宜蘭縣,10954,22157,11263,5227,3292,860,405,304,9388,10659,0,237,69
+113,新竹縣,18790,39379,17585,5054,4947,1130,999,523,10980,12951,0,161,201
+113,苗栗縣,13459,28315,13092,6104,5088,106,700,310,16438,16365,0,175,108
+113,彰化縣,29864,60625,28516,10028,12375,2407,1922,928,15787,15854,0,270,435
+113,南投縣,10944,22256,10999,3191,4494,856,206,335,9073,9073,147,170,109
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+113,嘉義縣,8639,17154,8240,2490,2221,0,224,98,23133,27250,0,59,0
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+113,澎湖縣,1814,3534,1666,682,854,0,22,0,2388,2651,0,12,0
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+114,臺南市,44318,91142,47883,21507,13301,2070,2128,1012,88863,88863,56,404,375
+114,高雄市,59174,127327,65631,30498,25072,820,3435,1329,118531,118531,0,5465,466
+114,宜蘭縣,10651,21605,11843,5046,3099,865,372,291,9143,9143,0,219,74
+114,新竹縣,18409,38373,18746,5267,4847,1160,1077,489,11340,11340,0,129,194
+114,苗栗縣,12852,27368,14041,6011,4587,44,641,285,15950,15950,0,159,100
+114,彰化縣,28486,58539,29788,9769,11956,2287,1656,758,15361,15361,0,279,429
+114,南投縣,10499,21608,11428,3121,4139,803,184,318,8947,8947,160,192,111
+114,雲林縣,13953,28798,16118,6500,4573,638,776,254,22453,22453,30,250,152
+114,嘉義縣,8270,16524,8509,2467,2208,0,117,93,22510,22510,0,81,0
+114,屏東縣,16988,34245,17225,6668,4547,504,162,371,27749,27749,0,298,151
+114,臺東縣,4553,9507,5035,502,1671,1580,95,139,5391,5391,0,10,85
+114,花蓮縣,6670,14809,7708,3328,2390,1115,7,301,15029,15029,0,156,115
+114,澎湖縣,1809,3434,1757,658,799,0,26,0,2202,2202,0,22,0
+114,基隆市,7020,15403,7827,3066,2530,127,26,168,13242,13242,0,154,83
+114,新竹市,13500,31460,16964,9222,7124,416,313,573,49039,49039,0,96,0
+114,嘉義市,6655,14126,8377,5680,5782,384,879,323,11103,11103,0,64,210
+114,金門縣,1867,3886,1948,950,752,0,0,32,3660,3660,0,0,0
+114,連江縣,235,488,247,0,0,252,0,0,0,0,0,0,0

projects/2026Fall進階專題六午/胡惟媗/week22_各縣市大專校院人數降幅/main.py

@@ -0,0 +1,140 @@
+"""Lesson 21：用同一份公開資料練習排名、文字圖與跨年比較。"""
+
+import csv
+from pathlib import Path
+
+
+DATA_FILE = Path("data/students_by_county.csv")
+
+# 先執行一次，再依自己的問題修改這幾個條件。
+BEFORE_YEAR = "113"
+AFTER_YEAR = "114"
+FIELD = "大專校院(全部計入校本部)[人]"
+TOP_N = 5
+# 以下工具已備好，可以先使用，再查詢函式裡的寫法。
+def load_rows(path=DATA_FILE):
+    """將 CSV 每列讀成 dict；兼容有 BOM 的 UTF-8 檔案。"""
+    with open(path, encoding="utf-8-sig", newline="") as file:
+        return list(csv.DictReader(file))
+
+
+def parse_count(value):
+    """數字文字轉成整數；空白、破折號與無效值回傳 None。"""
+    cleaned = (value or "").strip().replace(",", "")
+    if not cleaned or cleaned == "-":
+        return None
+    try:
+        return int(cleaned)
+    except ValueError:
+        return None
+
+
+def get_count(rows, school_year, county, field):
+    """查詢指定學年度、縣市與教育階段的人數；找不到回傳 None。"""
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        if row.get("縣市別", "").strip() == county:
+            return parse_count(row.get(field))
+    return None
+
+
+def count_by_county(rows, school_year, field):
+    """同一學年度的人數排名；未知值不當成 0。"""
+    totals = {}
+    for row in rows:
+        if row.get("學年度", "").strip() != str(school_year):
+            continue
+        county = row.get("縣市別", "").strip()
+        count = parse_count(row.get(field))
+        if county and count is not None:
+            totals[county] = count
+    return sorted(totals.items(), key=lambda item: item[1], reverse=True)
+
+
+def print_text_chart(results, limit=5):
+    """使用相同尺度畫文字長條，並保留可核對的人數。"""
+    visible = results[:max(0, limit)]
+    if not visible:
+        print("沒有符合條件的資料，請檢查學年度、欄位名稱與顯示筆數。")
+        return
+    largest = max(value for _, value in visible)
+    print("縣市       人數（人） | 比例長條")
+    for county, value in visible:
+        bar_length = round(value / largest * 24) if largest else 0
+        print(f"{county:<6} {value:>8,} | {'█' * bar_length}")
+    print("長條從 0 開始，最長為 24 格；仍以旁邊的實際數字核對。")
+
+
+
+def main():
+    rows = load_rows()
+
+    print("=== Lesson 21：各縣市大專校院學生人數下降排名 ===")
+    print(f"讀入 {len(rows)} 列資料")
+
+    if not rows:
+        print("CSV 沒有資料，請檢查檔案。")
+        return
+
+    # 比較 113 年與 114 年各縣市的人數
+    results = []
+
+    for row in rows:
+        if row.get("學年度", "").strip() != AFTER_YEAR:
+            continue
+
+        county = row.get("縣市別", "").strip()
+
+        before = get_count(rows, BEFORE_YEAR, county, FIELD)
+        after = get_count(rows, AFTER_YEAR, county, FIELD)
+
+        # 必須兩個年度都有資料才能比較
+        if before is None or after is None:
+            continue
+
+        change = after - before
+
+        # 只記錄人數下降的縣市
+        if change < 0:
+            results.append((county, before, after, change))
+
+    # 依照下降人數排序，下降最多的排最前面
+    results.sort(key=lambda item: item[3])
+
+    print(f"\n{BEFORE_YEAR} 年至 {AFTER_YEAR} 年")
+    print("各縣市大專校院學生人數下降排名")
+    print("-" * 60)
+
+    if not results:
+        print("沒有縣市的人數下降。")
+        return
+
+    print("排名  縣市    113年人數    114年人數    減少人數")
+
+    for rank, (county, before, after, change) in enumerate(
+        results[:TOP_N], start=1
+    ):
+        print(
+            f"{rank:<5} {county:<6} "
+            f"{before:>10,} "
+            f"{after:>10,} "
+            f"{change:>10,}"
+        )
+
+    print("\n=== 結果分析 ===")
+
+    county, before, after, change = results[0]
+
+    print(f"下降最多的縣市：{county}")
+    print(f"113年人數：{before:,} 人")
+    print(f"114年人數：{after:,} 人")
+    print(f"減少人數：{abs(change):,} 人")
+
+    print("\n資料來源：教育部統計處")
+    print("注意：這是 113 年與 114 年的年度人數比較。")
+
+
+if __name__ == "__main__":
+    main()
+