auto save

diy2.py

-username = "python"
-userpassword = "123456"
-while True:
-    name = input("TM入用户名:")
-    password = input("TM输入密码:")
-    if name == username and password == userpassword:
-        print("NB登录成功!")
-        break
-   if name!==username:
-        print("你个 SB，用户名错误!请重新输入")
-    if name!==password:
-        print("你个 SB，密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
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