save project

diy1.py

@@ -6,5 +6,8 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登LU成功")
         print("登LU成功")
         break
         break
-    print("错误")
+    if username!=name:
+        print("用户名错误")
+    if userpassword!=password:
+        print("密码错误")       
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
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