HttpWebRequest && WebResponse

public class Program
{
public static void Main(string[] args)
{
RequestData("http://www.baidu.com");

Console.ReadLine();
}

public static async void RequestData(string uri)
{
HttpWebRequest httpWebRequest = WebRequest.CreateHttp(uri);
WebResponse webResponse =await httpWebRequest.GetResponseAsync();

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

Console.Write(sr.ReadToEnd());

}
}