一个仁兄所写的采用API来检查网线插拔状态的远吗，我已经继承到我的WINCE系统应用中，用Thread封装起来，很好用，和大家分享。-A dear friend written using the API to check the network cable plug state far, I have inherited my WINCE system applications using the Thread package up, easy to use and to share with