auto save

diy2.py

@@ -9,5 +9,6 @@ while True:
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
     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")
+        continue
     if password != userpassword:
     if password != userpassword:
         print("密码错误，请重新输入")
         print("密码错误，请重新输入")
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