C#利用WebClient 兩種方式下載文件
WebClient client = new WebClient();
第一種
string URLAddress = @"http://files.cnblogs.com/x4646/tree.zip";
string receivePath=@"C:\";
client.DownloadFile(URLAddress, receivePath + System.IO.Path.GetFileName(URLAddress));
就OK了。
第二種
Stream str = client.OpenRead(URLAddress);
StreamReader reader = new StreamReader(str);
byte[] mbyte = new byte[1000000];
int allmybyte = (int)mbyte.Length;
int startmbyte = 0;
while (allmybyte > 0)
{
int m = str.Read(mbyte, startmbyte, allmybyte);
if (m == 0)
break;
startmbyte += m;
allmybyte -= m;
}
reader.Dispose();
str.Dispose();
string path = receivePath + System.IO.Path.GetFileName(URLAddress);
FileStream fstr = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write);
fstr.Write(mbyte, 0, startmbyte);
fstr.Flush();
fstr.Close();
利用webclient讀取html內容
public static string GetWebClient(string url)
{
string strHTML = "";
WebClient myWebClient = new WebClient();
Stream myStream = myWebClient.OpenRead(url);
StreamReader sr = new StreamReader(myStream, Encoding.Default);//註意編碼
strHTML = sr.ReadToEnd(); myStream.Close();
return strHTML;
}C#利用WebClient 兩種方式下載文件