save project

grd.py

@@ -6,10 +6,13 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    elif name != username:
+        while True:
+            if name != username:
                 print("用户名错误")
+                continue
             elif password != userpassword:
                 print("密码错误")
+                continue
     
     
 print("欢迎来到贝尔编程!")
\ No newline at end of file