save project

diy1.py

@@ -6,7 +6,10 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name 1
+    if name != username:
+        print("用户名输入有误！")
+    if password != username:
+        print("密码输入有误！")
     print("用户名和密码输入错误")
 print("欢迎来到贝尔编程!")