摘要: private bool FileExists(string fileUrl) { bool result = false;//下载结果 WebResponse response = null; try { WebRequest req = WebRequest.Create(fileUrl); response = req.GetResponse(); result = response == null... 阅读全文
posted @ 2013-02-01 14:59 放哨De老鼠 阅读(210) 评论(0) 推荐(0) 编辑