auto save

diy2.py

@@ -7,7 +7,7 @@ while True:
         print("登录成功!")
         print("登录成功!")
         break
         break
     if name!=username:
     if name!=username:
-        print("用户名错误!请重新输入")
+        print("用户名错误!请重新输入") and 
     if password!=userpassword:
     if password!=userpassword:
         print("密码错误")
         print("密码错误")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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