WebClient读取网页

            WebClient client = new WebClient();

Stream stream = client.OpenRead("http://www.microsoft.com/");

StreamReader sr = new StreamReader(stream, System.Text.Encoding.UTF8);

string str = sr.ReadLine();

string returnvalue = string.Empty;

while (str != null)

{

returnvalue += str;

str = sr.ReadLine();

}

 

当然WebClient远比这个强大,更多功能查看Msdn:http://msdn.microsoft.com/zh-cn/library/system.net.webclient(VS.80).aspx