日期:2014-05-17 浏览次数:21378 次
System.Net.HttpWebRequest myRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
            myRequest.Method = "HEAD";
            myRequest.Timeout = 10000;
            System.Net.HttpWebResponse res = (System.Net.HttpWebResponse)myRequest.GetResponse();
            return (res.StatusCode == System.Net.HttpStatusCode.OK);