save project

diy1.py

@@ -6,4 +6,7 @@ while True:
     if username==name and userpassword==password:
        print("登陆成功")
        break
-    print("用户密码错啦！重新输入！")
+    if username != name:
+       print("用户名错误")
+    if userpassword != password:
+       print("密码错误")