save project

diy2.py

@@ -6,5 +6,22 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
+    if name !=username
+        print('姓名错误')  
+    if pessword != userpassword:
+        print('密码错误')     
+
     else:
         print('密码不正确，请重新输入！')
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