auto save

diy2.py

@@ -5,9 +5,9 @@ while True:
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
-        b
-    if name != username:
+        break
+    elif name != username:
         print("用户名不存在,请重新输入")
         print("用户名不存在,请重新输入")
-    if password != userpassword:    
+    elif password != userpassword:    
         print("密码不存在,请重新输入")
         print("密码不存在,请重新输入")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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