auto save

diy2.py

+i=3
 username = "python"
 userpassword = "123456"
 while True:
+   if i>=0
     name = input("请输入用户名:")
     password = input("请输入密码:")
+    i -=1
     if name == username and password == userpassword:
         print("登录成功!")
         break
@@ -10,4 +13,5 @@ while True:
         print("用户名cw:")
     if password !== userpassword   
         print("密码cw")
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+else:
+print("你的账号登录成功了")
\ No newline at end of file