使用HttpWebRequest下载图片,保存到本地

不废话了，直接上代码吧。

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// 以下载百度首页的logo为例
string url = "http://www.baidu.com/img/bdlogo.gif";
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
var response = request.GetResponse() as HttpWebResponse;
var stream = response.GetResponseStream();
// 保存到本地
FileStream fs = new FileStream("ok.jpg", FileMode.Create);
stream.CopyTo(fs, (int)response.ContentLength);
fs.Close();