第二周周末作业

# import time
# count=0
# while count<3:
#     inp_name=input('请输入用户名:')
#     inp_pwd=input('请输入密码:')
#     with open("user.txt",mode="rt",encoding="utf-8") as f,open("lock.txt",mode="rt",encoding="utf-8") as f2:
#         for line in f:
#             username,password=line.strip().split(':')
#         for lock in f2:
#             res=lock.strip()
#             if inp_name==res:
#                 print('{}该账户已锁定'.format(res))
#                 time.sleep(5)
#             elif inp_name==username and inp_pwd==password:
#                 print('登陆成功')
#                 break
#         else:
#             print('登录失败')
#             count+=1
#             if count==3:
#                  with open("lock.txt",mode="at",encoding="utf-8") as f2:
#                     res=f2.write(inp_name)
#                  time.sleep(5)
#                  count=0


# 2.2：编写程序实现用户注册后，可以登录，
# 提示：
while True:
    msg = """
    0 退出
    1 登录
    2 注册
    """
    print(msg)
    cmd = input('请输入命令编号>>: ').strip()
    if not cmd.isdigit():
        print('必须输入命令编号的数字，傻叉')
        continue

    if cmd == '0':
        break
    elif cmd == '1':
        # 登录功能代码（附加：可以把之前的循环嵌套，三次输错退出引入过来）
        pass
    elif cmd == '2':
        # 注册功能代码
        pass
    else:
        print('输入的命令不存在')