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Add independent Lessons 23–25 auction project and parent demo
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"""荒謬商品拍賣會:使用虛擬幣,所有資料只留在本次執行。"""
PRODUCT = "永遠慢一天的作業提醒手錶"
BUDGET = 100
START = 10
STEP = 5
PLAYERS = ["甲", "乙", "丙"]
def ask_bid(name, minimum):
if minimum > BUDGET:
return 0
while True:
raw = input(f"{name},出價 {minimum}~{BUDGET} 幣,0 放棄:").strip()
try:
bid = int(raw)
except ValueError:
print("請輸入整數。")
continue
if bid == 0 or minimum <= bid <= BUDGET:
return bid
print(f"出價需在 {minimum}~{BUDGET} 幣之間。")
def open_round(players):
"""每次新出價都公開;全員一整輪沒有加價即開標。"""
winner, price = "", 0
while True:
changed = False
for name in players:
if name == winner:
continue
minimum = price + STEP if winner else START
bid = ask_bid(name, minimum)
if bid:
winner, price, changed = name, bid, True
print(f"目前最高:{winner}|{price} 幣")
if not changed or price >= BUDGET:
return winner, price
def announce(result):
winner, price = result
if not winner:
print("流標:沒有符合條件的出價。")
return
print(f"{winner} 得標|成交 {price} 幣|剩餘 {BUDGET - price} 幣")
def main():
if not 1 <= START <= BUDGET or STEP < 1:
print("請設定 1 ≤ 起標價 ≤ 預算,最低加價至少 1 幣。")
return
print(f"\n荒謬商品拍賣會|{PRODUCT}")
print(f"每人 {BUDGET} 枚虛擬幣|起標 {START}|公開加價至少 {STEP} 幣")
print("輸入 0 代表這次不加價;一整輪沒人加價即開標。")
announce(open_round(PLAYERS))
if __name__ == "__main__":
main()