import pymysql

if __name__ == '__main__':
    # 建立数据库连接的语句connection
    connection = pymysql.connect(user="root", password="Wyz010810", database="SCT", host="127.0.0.1", port=3306)
    cursor = connection.cursor()    # 创建游标
    sql = "select * from student"   # SQL语句字符串
    # 为了防止SQL注入等安全问题，可以使用参数化查询。
    try:
        cursor.execute(sql)    # 执行SQL语句
        ResultList = cursor.fetchall()  # 获取游标中的数据
        print(ResultList)   # Student[(S#,Sname,Sage,...),...]
    except pymysql.Error as e:  # 捕获报错信息
        print("MySQL Error:", e)   # 打印报错信息
    finally:
        cursor.close()  # 关闭游标
        connection.close()  # 关闭数据库连接