1 def out():

 2     username=input("请输入用户名：\n")

 3     password=input("请输入密码：\n")

 4     return username,password

 5 def registered():

 6     username,password=out()

 7     temp=username+"|"+password

 8     with open(file="log.txt",mode="w",encoding="utf-8") as f:

 9         f.write(temp)

10 def login():

11     username,password=out()

12     with open(file="log.txt",mode="r",encoding="utf-8") as f:

13         lists=f.read().split("|")

14     if username==lists[0] and password==lists[1]:

15         return True

16     else:

17         print("你登录的账户有误，请重新登录")

18 def profile():

19     with open(file="log.txt",mode="r",encoding="utf-8") as f:

20         lists=f.read().split("|")

21         print("欢迎访问{0}个人主页".format(lists[0]))

22 def main():

23     while True:

24         try:

25             f=int(input("1、注册 2、登录 \n"))

26             if f==1:

27                 registered()

28             elif f==2:

29                 if login()==True:

30                     profile()

31                 else:

32                     print("请输入正确的账户密码")

33             else:

34                 break

35         except:

36                 continue

37

38 if __name__ == '__main__':

39     main()