C# 获取远程URL返回的相关数据

public static string Get_url_data(string url)
{
string Url_Data = "";
try
{
System.Net.WebRequest Request = System.Net.WebRequest.Create(url);
System.Net.WebResponse Response = Request.GetResponse();
System.IO.Stream resStream = Response.GetResponseStream();
System.IO.StreamReader sr = new System.IO.StreamReader(resStream, System.Text.Encoding.Default);
Url_Data = sr.ReadToEnd();
resStream.Close();
sr.Close();
}
catch { }
return Url_Data.Trim();
}