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@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
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 *tfevents* filter=lfs diff=lfs merge=lfs -text
+03_Redis数据库概述.ipynb filter=lfs diff=lfs merge=lfs -text

01_Python操作MySQL.ipynb

@@ -0,0 +1,592 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "84513081",
+   "metadata": {},
+   "source": [
+    "## 查看数据"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "23241985",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:10:53.493078Z",
+     "start_time": "2023-10-10T12:10:53.417598Z"
+    },
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "<pymysql.connections.Connection object at 0x106d22760>\n",
+      "(5, '孙铭阳', '男', 20, '广东', '23446523', '23446523@qq.com', 'zhangsan', '123')\n",
+      "(17, '李四', '女', 26, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(21, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(22, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(25, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(27, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(28, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(29, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(30, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(31, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(32, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(33, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(34, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(35, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(36, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(37, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(38, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(39, '李永波', '女', 43, '广东', '236543', '236543@qq.com', None, None)\n",
+      "(40, '00', '男', 78, '广东', '99', '123', None, None)\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "\n",
+    "## 连接数据库\n",
+    "# 获取连接\n",
+    "connection = pymysql.connect(\n",
+    "    host=\"localhost\", user=\"root\", password=\"zxydsg123\", \n",
+    "    db=\"User_information_case\", # 数据库名称\n",
+    "    charset='utf8') # 编码 UTF-8\n",
+    "\n",
+    "print(connection)\n",
+    "\n",
+    "# 创建 cursor对象\n",
+    "cursor = connection.cursor()\n",
+    "\n",
+    "# 编写 sql\n",
+    "sql = \"select * from user\"\n",
+    "\n",
+    "# 执行 SQL\n",
+    "cursor.execute(sql)\n",
+    "\n",
+    "# 获取结果集\n",
+    "users = cursor.fetchall()\n",
+    "\n",
+    "# 查看结果\n",
+    "for u in users:\n",
+    "    print(u)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "ebb6eacc",
+   "metadata": {},
+   "source": [
+    "## 插入数据"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "eb638782",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:15:52.983647Z",
+     "start_time": "2023-10-10T12:15:52.960757Z"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "count:  1\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "\n",
+    "# 获取连接\n",
+    "connection = pymysql.connect(\n",
+    "    host=\"localhost\", user=\"root\", password=\"zxydsg123\",\n",
+    "    db=\"User_information_case\", # 数据库名称\n",
+    "    charset=\"utf8\") # 编码 UTF-8\n",
+    "\n",
+    "# 获取cursor对象\n",
+    "cursor = connection.cursor()\n",
+    "\n",
+    "# 编写sql\n",
+    "sql = \"insert into user(id, name) values(41, 'Tom')\"\n",
+    "\n",
+    "# 执行sql，返回 影响的行数\n",
+    "count = cursor.execute(sql)\n",
+    "\n",
+    "print(\"count: \", count)\n",
+    "\n",
+    "# 执行DML时候，会开启一个事务，需要我们主动提交 -- 防止对数据进行误操作\n",
+    "connection.commit()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4e53b475",
+   "metadata": {},
+   "source": [
+    "## 修改数据"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "af994da0",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:18:28.072611Z",
+     "start_time": "2023-10-10T12:18:28.062564Z"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "count: 1\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "\n",
+    "# 获取连接\n",
+    "connection = pymysql.connect(\n",
+    "    host=\"localhost\", user=\"root\", password=\"zxydsg123\", \n",
+    "    db=\"User_information_case\", # 数据库名称\n",
+    "    charset=\"utf8\") # 编码 UTF-8\n",
+    "\n",
+    "# 获取cursor对象\n",
+    "cursor = connection.cursor()\n",
+    "\n",
+    "# 编写sql\n",
+    "sql = \"update user set gender='男' where id=41\"\n",
+    "\n",
+    "# 执行sql，返回受影响的行数\n",
+    "count = cursor.execute(sql)\n",
+    "print(\"count:\", count)\n",
+    "\n",
+    "# 执行DML时候，会开启一个事务，需要我们主动提交 -- 防止对数据进行误操作\n",
+    "connection.commit()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "7155a879",
+   "metadata": {},
+   "source": [
+    "## 删除数据"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "985d4f0b",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:20:45.873650Z",
+     "start_time": "2023-10-10T12:20:45.864234Z"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "count: 1\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "\n",
+    "# 获取连接\n",
+    "connection = pymysql.connect(\n",
+    "    host=\"localhost\", user=\"root\", password=\"zxydsg123\", \n",
+    "    db=\"User_information_case\", # 数据库名称\n",
+    "    charset=\"utf8\") # 编码 UTF-8\n",
+    "\n",
+    "# 获取cursor对象\n",
+    "cursor = connection.cursor()\n",
+    "\n",
+    "# 编写sql\n",
+    "sql = \"delete from user where id=41\"\n",
+    "\n",
+    "# 执行sql，返回受影响的行数\n",
+    "count = cursor.execute(sql)\n",
+    "print(\"count:\", count)\n",
+    "\n",
+    "# 执行DML时候，会开启一个事务，需要我们主动提交 -- 防止对数据进行误操作\n",
+    "connection.commit()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "56bce4d3",
+   "metadata": {},
+   "source": [
+    "## 查询漏洞"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "id": "29422cfe",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:24:40.726658Z",
+     "start_time": "2023-10-10T12:24:40.717935Z"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "count: 19\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "# 获取连接\n",
+    "connection = pymysql.connect(\n",
+    "    host=\"localhost\", user=\"root\", password=\"zxydsg123\", \n",
+    "    db=\"User_information_case\", # 数据库名称\n",
+    "    charset=\"utf8\") # 编码 UTF-8\n",
+    "\n",
+    "# 获取cursor对象\n",
+    "cursor = connection.cursor()\n",
+    "\n",
+    "# 编写sql\n",
+    "sql = \"select * from user where name=%s\" % (\"'scott' or 1=1\")\n",
+    "\n",
+    "# 执行sql\n",
+    "count = cursor.execute(sql)\n",
+    "print(\"count:\", count)\n",
+    "\n",
+    "# 执行DML时候，会开启一个事务，需要我们主动提交 -- 防止对数据进行误操作\n",
+    "connection.commit()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "706a683b",
+   "metadata": {},
+   "source": [
+    "## 传递参数"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "id": "a468b121",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:26:10.322260Z",
+     "start_time": "2023-10-10T12:26:10.310338Z"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "count: 1\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "# 获取连接\n",
+    "connection = pymysql.connect(\n",
+    "    host=\"localhost\", user=\"root\", password=\"zxydsg123\", \n",
+    "    db=\"User_information_case\", # 数据库名称\n",
+    "    charset=\"utf8\") # 编码 UTF-8\n",
+    "\n",
+    "# 获取cursor对象\n",
+    "cursor = connection.cursor()\n",
+    "\n",
+    "# 编写sql\n",
+    "sql = \"insert into user(id, name) values(%s, %s)\"\n",
+    "\n",
+    "# 执行sql\n",
+    "args = (41, 'marry')\n",
+    "count = cursor.execute(sql, args)\n",
+    "print(\"count:\", count)\n",
+    "\n",
+    "# 执行DML时候，会开启一个事务，需要我们主动提交 -- 防止对数据进行误操作\n",
+    "connection.commit()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "84a00649",
+   "metadata": {},
+   "source": [
+    "## 添加异常处理"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "d24cf6a9",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:32:36.642368Z",
+     "start_time": "2023-10-10T12:32:36.630347Z"
+    },
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "count: 1\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "connection = None\n",
+    "cursor = None\n",
+    "\n",
+    "try:\n",
+    "    # 获取连接\n",
+    "    connection = pymysql.connect(\n",
+    "        host=\"localhost\", user=\"root\", password=\"zxydsg123\", \n",
+    "        db=\"User_information_case\", # 数据库名称\n",
+    "        charset=\"utf8\") # 编码 UTF-8\n",
+    "    \n",
+    "    # 获取 cursor对象\n",
+    "    cursor = connection.cursor()\n",
+    "    \n",
+    "    # 编写sql\n",
+    "    sql = \"insert into user(id, name) values(%s, %s)\"\n",
+    "    \n",
+    "    # 执行sql\n",
+    "    args = (1234, 'Tom')\n",
+    "    count = cursor.execute(sql, args)\n",
+    "    print(\"count:\", count)\n",
+    "    \n",
+    "    # 执行DML时候，会开启一个事务，需要我们主动提交\n",
+    "    connection.commit()\n",
+    "    \n",
+    "except Exception as e:\n",
+    "    # 如果捕获到异常\n",
+    "    print(e)\n",
+    "    \n",
+    "    if connection:\n",
+    "        # 回滚事务\n",
+    "        connection.rollback()\n",
+    "        \n",
+    "finally:\n",
+    "    # 无论是否捕获到异常，我们都要关闭cursor，释放资源\n",
+    "    if cursor:\n",
+    "        cursor.close()\n",
+    "        \n",
+    "    if connection:\n",
+    "        cursor.close()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "874055be",
+   "metadata": {},
+   "source": [
+    "## DBUtil功能封装"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "id": "8873d37e",
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2023-10-10T12:44:33.199935Z",
+     "start_time": "2023-10-10T12:44:33.175199Z"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "(1062, \"Duplicate entry '9999' for key 'user.PRIMARY'\")\n",
+      "(9999, 'lili', '女', None, None, None, None, None, None)\n",
+      "(5, '孙铭阳', '男', 20, '广东', '23446523', '23446523@qq.com', 'zhangsan', '123')\n",
+      "(17, '李四', '女', 26, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(21, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(22, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(25, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(27, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(28, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(29, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(30, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(31, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(32, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(33, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(34, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(35, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(36, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(37, '李四', '男', 24, '广东', '12345123', 'lisi@qq.com', None, None)\n",
+      "(38, '王五', '男', 25, '湖南', '12345123', 'lisi@qq.com', None, None)\n",
+      "(39, '李永波', '女', 43, '广东', '236543', '236543@qq.com', None, None)\n",
+      "(40, '00', '男', 78, '广东', '99', '123', None, None)\n",
+      "(41, 'marry', None, None, None, None, None, None, None)\n",
+      "(1234, 'Tom', None, None, None, None, None, None, None)\n",
+      "(9999, 'lili', '女', None, None, None, None, None, None)\n"
+     ]
+    }
+   ],
+   "source": [
+    "import pymysql\n",
+    "\n",
+    "\n",
+    "class DBUtil:\n",
+    "    \"\"\"数据库工具类\"\"\"\n",
+    "\n",
+    "    config = {\n",
+    "        \"host\": \"localhost\",\n",
+    "        \"user\": \"root\",\n",
+    "        \"password\": \"zxydsg123\",\n",
+    "        \"db\": \"User_information_case\",  # 数据库名称\n",
+    "        \"charset\": \"utf8\"  # 编码 UTF-8\n",
+    "    }\n",
+    "\n",
+    "    def __init__(self):\n",
+    "\n",
+    "        # 建立连接，传入参数\n",
+    "        self.connection = pymysql.connect(**DBUtil.config)\n",
+    "\n",
+    "        # 创建 cursor对象\n",
+    "        self.cursor = self.connection.cursor()\n",
+    "\n",
+    "    def close(self):\n",
+    "        \"\"\"释放资源\"\"\"\n",
+    "        if self.cursor:\n",
+    "            self.cursor.close()\n",
+    "        if self.connection:\n",
+    "            self.connection.close()\n",
+    "\n",
+    "    def exeDML(self, sql, *args):\n",
+    "        \"\"\"DML（Data Manipulation Language）语句: 数据操纵语言 -- 插入 修改  删除调用\"\"\"\n",
+    "        try:\n",
+    "            # 执行sql，返回影响到的行数\n",
+    "            count = self.cursor.execute(sql, args)\n",
+    "            \n",
+    "            # 提交事务\n",
+    "            self.connection.commit()\n",
+    "            \n",
+    "            return count\n",
+    "        \n",
+    "        # 如果捕获到异常\n",
+    "        except Exception as e:\n",
+    "            print(e)\n",
+    "            \n",
+    "            # 回滚食物\n",
+    "            if self.connection:\n",
+    "                self.connection.rollback()\n",
+    "\n",
+    "    def query_one(self, sql, *args):\n",
+    "        \"\"\"查询单行数据\"\"\"\n",
+    "        try:\n",
+    "            # 执行sql\n",
+    "            self.cursor.execute(sql, args)\n",
+    "            \n",
+    "            # 获取结果集\n",
+    "            return self.cursor.fetchone()\n",
+    "        \n",
+    "        except Exception as e:\n",
+    "            print(e)\n",
+    "    \n",
+    "    def query_all(self, sql, *args):\n",
+    "        \"\"\"查询所有数据\"\"\"\n",
+    "        try:\n",
+    "            # 执行sql\n",
+    "            self.cursor.execute(sql, args)\n",
+    "            # 获取结果集\n",
+    "            return self.cursor.fetchall()\n",
+    "        \n",
+    "        except Exception as e:\n",
+    "            print(e)\n",
+    "\n",
+    "\n",
+    "if __name__ == \"__main__\":\n",
+    "    \n",
+    "    # 创建 DBUtil\n",
+    "    dbutil = DBUtil()\n",
+    "    \n",
+    "    # 插入数据\n",
+    "    sql = \"insert into user(id, name, gender) values(%s, %s, %s)\"\n",
+    "    \n",
+    "    count = dbutil.exeDML(sql, 9999,'lili', '女')\n",
+    "\n",
+    "    \n",
+    "    # 查询单行数据\n",
+    "    sql = \"select * from user where id=%s\"\n",
+    "\n",
+    "    # 打印查询结果\n",
+    "    emp = dbutil.query_one(sql, 9999)\n",
+    "    print(emp)\n",
+    "\n",
+    "    \n",
+    "    # 查询所有数据\n",
+    "    sql = \"select * from user\"\n",
+    "    users = dbutil.query_all(sql)\n",
+    "    for u in users:\n",
+    "        print(u)\n",
+    "        \n",
+    "    # 记得释放资源\n",
+    "    dbutil.close()"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.12"
+  },
+  "toc": {
+   "base_numbering": 1,
+   "nav_menu": {},
+   "number_sections": true,
+   "sideBar": true,
+   "skip_h1_title": false,
+   "title_cell": "Table of Contents",
+   "title_sidebar": "Contents",
+   "toc_cell": false,
+   "toc_position": {
+    "height": "calc(100% - 180px)",
+    "left": "10px",
+    "top": "150px",
+    "width": "288px"
+   },
+   "toc_section_display": true,
+   "toc_window_display": true
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

02_项目：音乐播放器.ipynb

@@ -0,0 +1,383 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "ff211c10",
+   "metadata": {},
+   "source": [
+    "## 数据库工具类"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d43a7671",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pymysql\n",
+    "\n",
+    "\n",
+    "class Mydb:\n",
+    "    \"\"\"数据库工具类\"\"\"\n",
+    "\n",
+    "    # 设置参数\n",
+    "    config = {\n",
+    "        \"host\": \"localhost\",\n",
+    "        \"user\": \"root\",\n",
+    "        \"password\": \"zxydsg123\",\n",
+    "        \"db\": \"\",\n",
+    "        \"charset\": \"utf8\"\n",
+    "    }\n",
+    "\n",
+    "    def __init__(self):\n",
+    "        \"\"\"初始化\"\"\"\n",
+    "        # 建立连接\n",
+    "        self.connection = pymysql.connect(**Mydb.config)\n",
+    "\n",
+    "        # 创建 cursor对象\n",
+    "        self.cursor = self.connection.cursor()\n",
+    "\n",
+    "    def close(self):\n",
+    "        \"\"\"释放资源\"\"\"\n",
+    "        if self.cursor:\n",
+    "            self.cursor.close()\n",
+    "        if self.connection:\n",
+    "            self.connection.close()\n",
+    "\n",
+    "    def exeDML(self, sql, *args):\n",
+    "        \"\"\"插入 修改  删除调用\"\"\"\n",
+    "        try:\n",
+    "            # 执行sql\n",
+    "            count = self.cursor.execute(sql, args)\n",
+    "            id = self.connection.insert_id()\n",
+    "            \n",
+    "            # 提交事务\n",
+    "            self.connection.commit()\n",
+    "            return id\n",
+    "        \n",
+    "        # 如果捕获到异常，则回滚事务\n",
+    "        except Exception as e:\n",
+    "            print(e)\n",
+    "            if self.connection:\n",
+    "                self.connection.rollback()\n",
+    "       \n",
+    "\n",
+    "    def query_one(self, sql, *args):\n",
+    "        \"\"\"查询单条数据\"\"\"\n",
+    "        try:\n",
+    "            # 执行sql\n",
+    "            self.cursor.execute(sql, args)\n",
+    "            \n",
+    "            # 获取结果集\n",
+    "            return self.cursor.fetchone()\n",
+    "        \n",
+    "        except Exception as e:\n",
+    "            print(e)\n",
+    "       \n",
+    "\n",
+    "    def query_all(self, sql, *args):\n",
+    "        \"\"\"查询全部数据\"\"\"\n",
+    "        try:\n",
+    "            # 执行sql\n",
+    "            self.cursor.execute(sql, args)\n",
+    "            \n",
+    "            # 获取结果集\n",
+    "            return self.cursor.fetchall()\n",
+    "        \n",
+    "        except Exception as e:\n",
+    "            print(e)\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1f9ed17d",
+   "metadata": {},
+   "source": [
+    "## 提供服务类"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8326901a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pygame\n",
+    "\n",
+    "\n",
+    "class MyService:\n",
+    "    def __init__(self):\n",
+    "        self.user = None\n",
+    "\n",
+    "    def login(self, uname, password):\n",
+    "        \"\"\"登录\"\"\"\n",
+    "\n",
+    "        # 获取 用户名、密码\n",
+    "        sql = \"select * from t_user where uname=%s and password=%s\"\n",
+    "        user = Mydb().query_one(sql, uname, password)\n",
+    "\n",
+    "        # 比对信息\n",
+    "        if user:\n",
+    "            self.user = user\n",
+    "            return True\n",
+    "        else:\n",
+    "            return False\n",
+    "\n",
+    "    def add_music(self, files):\n",
+    "        \"\"\"添加音乐\"\"\"\n",
+    "\n",
+    "        # 遍历文件名\n",
+    "        for f in files:\n",
+    "\n",
+    "            # 前缀\n",
+    "            start = f.rfind(\"/\")+1\n",
+    "            \n",
+    "            # 后缀\n",
+    "            end = f.rfind(\".mp3\")\n",
+    "            \n",
+    "            # 音乐名\n",
+    "            music_name = f[start:end]\n",
+    "            \n",
+    "            # 根据歌名查询数据库中，是否有该首歌\n",
+    "            sql = \"select * from t_music where music_name=%s\"\n",
+    "            music = Mydb().query_one(sql, music_name)\n",
+    "            \n",
+    "            # 如果数据库中存在 该音乐\n",
+    "            if music:\n",
+    "                \n",
+    "                # 查询关联表t_list 该用户是否添加了这首歌\n",
+    "                sql = \"select * from t_list where mid=%s and uid=%s\"\n",
+    "                t_list = Mydb().query_one(sql, music[0], self.user[0])\n",
+    "                \n",
+    "                # 如果用户未添加该歌曲，添加\n",
+    "                if not t_list:\n",
+    "                    sql = \"insert into t_list(mid,uid) values(%s,%s)\"\n",
+    "                    Mydb().exeDML(sql, music[0], self.user[0])\n",
+    "            \n",
+    "            # 数据库中如果没有该音乐\n",
+    "            else:\n",
+    "                # 将音乐保存到 数据库\n",
+    "                sql = \"insert into t_music(music_name,path) values(%s,%s)\"\n",
+    "                mid = Mydb().exeDML(sql, music_name, f)\n",
+    "\n",
+    "                # 为用户添加音乐\n",
+    "                sql = \"insert into t_list(mid,uid) values(%s,%s)\"\n",
+    "                Mydb().exeDML(sql, mid, self.user[0])\n",
+    "\n",
+    "    \n",
+    "    def findListByUser(self):\n",
+    "        \"\"\"查询用户的音乐列表\"\"\"\n",
+    "        sql = \"select m.music_name from t_music m,t_list t where m.id=t.mid and t.uid=%s\"\n",
+    "        return Mydb().query_all(sql, self.user[0])\n",
+    "\n",
+    "\n",
+    "    def delete_music(self, music_name):\n",
+    "        \"\"\"删除音乐\"\"\"\n",
+    "        \n",
+    "        # 根据音乐名称查询音乐id\n",
+    "        sql = \"select id from t_music where music_name = %s\"\n",
+    "        mid = Mydb().query_one(sql, music_name)\n",
+    "        \n",
+    "        # 为用户删除音乐，但数据库中不删除音乐\n",
+    "        sql = \"delete from t_list where uid=%s and mid=%s\"\n",
+    "        Mydb().exeDML(sql, self.user[0], mid[0])\n",
+    "\n",
+    "        \n",
+    "    def playMuisc(self, music_name):\n",
+    "        \"\"\"播放音乐\"\"\"\n",
+    "        \n",
+    "        # 根据名称查询音乐的path\n",
+    "        sql = \"select path from t_music where music_name=%s\"\n",
+    "        path = Mydb().query_one(sql, music_name)\n",
+    "        \n",
+    "        # 初始化 mixer\n",
+    "        pygame.mixer.init()\n",
+    "        \n",
+    "        # 加载音乐\n",
+    "        pygame.mixer.music.load(path[0])\n",
+    "        \n",
+    "        # 播放音乐\n",
+    "        pygame.mixer.music.play()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "87ee0b38",
+   "metadata": {},
+   "source": [
+    "## GUI界面"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7d3a5f55",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import tkinter\n",
+    "from tkinter.filedialog import askopenfilenames\n",
+    "\n",
+    "\n",
+    "class PlayWindow:\n",
+    "    def __init__(self, myService):\n",
+    "        \"\"\"初始化\"\"\"\n",
+    "        self.myService = myService\n",
+    "        \n",
+    "        self.listbox = None\n",
+    "\n",
+    "    # 导入音乐\n",
+    "    def impMusic(self, even):\n",
+    "        \"\"\"导入音乐\"\"\"\n",
+    "        print('点击了导入音乐按钮')\n",
+    "        \n",
+    "        # 打开磁盘选择音乐\n",
+    "        files = askopenfilenames(filetype=([\"mp3\", \"*.mp3\"],))\n",
+    "        \n",
+    "        # 导入音乐，将选择的音乐保存到数据库\n",
+    "        self.myService.add_music(files)\n",
+    "        \n",
+    "        # 刷新音乐列表\n",
+    "        self.flush_list()\n",
+    "\n",
+    "\n",
+    "    def flush_list(self):\n",
+    "        \"\"\"刷新当前用户的音乐列表\"\"\"\n",
+    "        # 清空列表\n",
+    "        self.listbox.delete(0, tkinter.END)\n",
+    "        \n",
+    "        # 查询该用户的所有音乐列表\n",
+    "        music_list = self.myService.findListByUser()\n",
+    "        \n",
+    "        # 重新插入音乐\n",
+    "        if music_list:\n",
+    "            for m in music_list:\n",
+    "                self.listbox.insert(tkinter.END, m)\n",
+    "\n",
+    "\n",
+    "    def playMusic(self, even):\n",
+    "        \"\"\"播放音乐\"\"\"\n",
+    "        print('点击了播放音乐按钮')\n",
+    "        \n",
+    "        # 获取播放的音乐\n",
+    "        index = self.listbox.curselection()\n",
+    "        music_name = self.listbox.get(index)\n",
+    "        \n",
+    "        # 调用方法播放音乐\n",
+    "        self.myService.playMuisc(music_name)\n",
+    "\n",
+    "\n",
+    "    def deleteMusic(self, even):\n",
+    "        \"\"\"删除音乐\"\"\"\n",
+    "        print('点击了删除音乐按钮')\n",
+    "        \n",
+    "        # 获取删除音乐的名称\n",
+    "        index = self.listbox.curselection()\n",
+    "        music_name = self.listbox.get(index)\n",
+    "        print(music_name)\n",
+    "        \n",
+    "        # 调用删除方法删除音乐\n",
+    "        self.myService.delete_music(music_name)\n",
+    "        \n",
+    "        # 刷新列表\n",
+    "        self.flush_list()\n",
+    "\n",
+    "    def showWindow(self):\n",
+    "        \"\"\"展示窗口\"\"\"\n",
+    "        \n",
+    "        # 根窗口对象\n",
+    "        top = tkinter.Tk()\n",
+    "\n",
+    "        # 创建按钮\n",
+    "        play_button = tkinter.Button(top, text=\"播放\")\n",
+    "        imp_button = tkinter.Button(top, text=\"导入音乐\")\n",
+    "        delete_button = tkinter.Button(top, text=\"删除\")\n",
+    "        \n",
+    "        # 对按钮进行布局\n",
+    "        play_button.grid(row=0, column=0, padx=5, pady=5)\n",
+    "        imp_button.grid(row=0, column=2, padx=5, pady=5)\n",
+    "        delete_button.grid(row=0, column=4, padx=5, pady=5)\n",
+    "\n",
+    "        # 添加列表\n",
+    "        self.listbox = tkinter.Listbox(top)\n",
+    "        self.listbox.grid(row=1, column=0, padx=5, pady=5, columnspan=9)\n",
+    "\n",
+    "        # 给按钮添加点击事件\n",
+    "        imp_button.bind(\"<ButtonRelease-1>\", self.impMusic)\n",
+    "        play_button.bind(\"<ButtonRelease-1>\", self.playMusic)\n",
+    "        delete_button.bind(\"<ButtonRelease-1>\", self.deleteMusic)\n",
+    "\n",
+    "        # 刷新音乐列表\n",
+    "        self.flush_list()\n",
+    "\n",
+    "        # 展示GUI\n",
+    "        top.mainloop()\n",
+    "\n",
+    "\n",
+    "if __name__ == \"__main__\":\n",
+    "    \n",
+    "    # 输入登录信息\n",
+    "    uname = input(\"请输入用户名:\")\n",
+    "    password = input(\"请输入密码:\")\n",
+    "    \n",
+    "    # 创建提供服务类\n",
+    "    myservice = MyService()\n",
+    "    \n",
+    "    # 登录成功\n",
+    "    if myservice.login(uname, password):\n",
+    "        print('登录成功')\n",
+    "        \n",
+    "        # 创建 GUI\n",
+    "        playWindow = PlayWindow(myservice)\n",
+    "        \n",
+    "        # 展示\n",
+    "        playWindow.showWindow()\n",
+    "\n",
+    "    # 登录失败\n",
+    "    else:\n",
+    "        print('登录失败')"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.12"
+  },
+  "toc": {
+   "base_numbering": 1,
+   "nav_menu": {},
+   "number_sections": true,
+   "sideBar": true,
+   "skip_h1_title": false,
+   "title_cell": "Table of Contents",
+   "title_sidebar": "Contents",
+   "toc_cell": false,
+   "toc_position": {
+    "height": "calc(100% - 180px)",
+    "left": "10px",
+    "top": "150px",
+    "width": "288px"
+   },
+   "toc_section_display": true,
+   "toc_window_display": true
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

03_Redis数据库概述.ipynb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bf4172a08d7804cf35b045472f45eefb5cf64e2a03a7b9c25dabc9bcb736600b
+size 37642843