auto save

diy2.py

@@ -6,9 +6,8 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name !== username   
+    elif name != username:  
         print("用户名cw:")
-        continue
-    if password !== userpassword   
+    else:
         print("密码cw")
 print("欢迎来到贝尔编程!")
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