save project

bug.py

@@ -6,5 +6,8 @@ while True:
     if name ==username and password == userpassword:
         print("登录成功！")
         break
-    print("用户名和密码错误！请重新输入：")
+    if name != username:
+        print("用户名错误！请重新输入：")
+    if password != userpassword:
+        print("密码错误！重新输入！")
 print("欢迎来到贝尔编程！")