明华敖汉urf-330接口代码, 这是C#版的。-Minghua card reader R330-L demo, C# version.

利用AJAX实现无刷新模式的在线聊天系统，该系统特点如下：1、不会造成网页重新加载 2、不打断用户的其它操作-Achieved without the use of AJAX refresh mode online chat system, which features are as follows: 1, 2 does not cause page reload, do not interrupt the user' s other operations