save project

diy1.py

@@ -7,5 +7,9 @@ while True:
     if name==username and password==userpassword:
     if name==username and password==userpassword:
         print("登陆成功")
         print("登陆成功")
         break
         break
+    if name != username:
+        print("用户名错误，请重新输入")
+    if password != userpassword:
+        print("用户密码错误，请重新输入")
 print("欢迎来来到贝尔编程器")
 print("欢迎来来到贝尔编程器")