save project

diy1.py

@@ -6,10 +6,10 @@ while True:
     if name == username and password == userpassword:
         print("登录成功！") 
         break
-    if name != username: 
+    elif name != username: 
         print("用户名不存在")
-        continue
-    if password != userpassword:
+        
+    elif password != userpassword:
         print("密码输入有误")
 print("欢迎")        
      
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