怎么通过POST获取页面代码!急

Question

我blog上的文章,是否满足要求private string getWebresourceFile1(string url)
{WebClient myWebClient = new WebClient(); 
byte[] myDataBuffer = myWebClient.DownloadData(url);
string SourceCode = Encoding.Default.GetString(myDataBuffer);
saveSourceCode(SourceCode);
return SourceCode;
}方法2
private string getWebresourceFile2(string url)
{
HttpWebRequest request=(HttpWebRequest)WebRequest.Create(url); 
HttpWebResponse response=(HttpWebResponse)request.GetResponse(); 
request.Method = "GET"; 
Stream receiveStream=response.GetResponseStream();
StreamReader readStream=new StreamReader(receiveStream,Encoding.Default);
string SourceCode=readStream.ReadToEnd(); 
saveSourceCode(SourceCode);
response.Close(); 
readStream.Close();
return SourceCode;}
方法3
private string getWebresourceFile3(string url)
{
WebClient wc = new WebClient();
wc.Credentials = CredentialCache.DefaultCredentials;
Byte[] pageData = wc.DownloadData(url);
string SourceCode = Encoding.Default.GetString(pageData);
saveSourceCode(SourceCode);
wc.Dispose(); 
return SourceCode;
}方法4
private string getWebresourceFile4(string url)
{
WebClient wc = new WebClient();
wc.Credentials = CredentialCache.DefaultCredentials;
Stream resStream = wc.OpenRead(url);
StreamReader sr = new StreamReader(resStream,System.Text.Encoding.Default);string SourceCode = sr.ReadToEnd();
saveSourceCode(SourceCode);
resStream.Close();
wc.Dispose(); 
return SourceCode;
}
方法5
private string getWebresourceFile5(string url)
{
WebRequest request = WebRequest.Create(url);
WebResponse response = request.GetResponse();
Stream resStream = response.GetResponseStream(); 
StreamReader sr = new StreamReader(resStream, System.Text.Encoding.Default);
string SourceCode = sr.ReadToEnd();
saveSourceCode(SourceCode);
resStream.Close(); 
sr.Close();
return SourceCode;
}