save project

diy2.py

@@ -6,4 +6,10 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!欢迎来到贝尔编程!")
     else:
-        print("用户名和密码错误!请重新输入")
\ No newline at end of file
+        print("用户名或密码错误!请重新输入")
+        if name !=userpassword:
+            print("请输入用户名")
+            continue
+        if password !=userpassword:
+            print("请输入密码")
+print("欢迎来到贝尔编程!")
\ No newline at end of file