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()