-1
我有這兩個功能。現在他們將從網址中下載並保存url變量中的特定圖像。如何從網站下載.cs文件？
但現在我想改變GetAllImages（）函數的內容，並使用csFiles串網站從網站獲得的所有的.cs文件並將其保存到硬盤上。 所以我需要改變GetAllImages功能，並且還修改DownloadImage功能下載*的.cs文件，而不是圖像。
我該怎麼辦？
public void GetAllImages()
{
// Bing Image Result for Cat, First Page
string url = "http://www.bing.com/images/search?q=cat&go=&form=QB&qs=n";
string csFiles = "http://open-hardware-monitor.googlecode.com/svn/trunk/Hardware/";
// For speed of dev, I use a WebClient
WebClient client = new WebClient();
string html = client.DownloadString(url);
// Load the Html into the agility pack
HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);
// Now, using LINQ to get all Images
/*List<HtmlNode> imageNodes = null;
imageNodes = (from HtmlNode node in doc.DocumentNode.SelectNodes("//img")
where node.Name == "img"
&& node.Attributes["class"] != null
&& node.Attributes["class"].Value.StartsWith("sg_t")
select node).ToList();*/
var imageLinks = doc.DocumentNode.Descendants("img")
.Where(n => n.Attributes["class"].Value == "sg_t")
.Select(n => HttpUtility.ParseQueryString(n.Attributes["src"].Value)["amp;url"]).ToList();
foreach (string node in imageLinks)
{
y++;
//Console.WriteLine(node.Attributes["src"].Value);
richTextBox1.Text += node + Environment.NewLine;
Image t = DownloadImage(node);
t.Save(@"d:\test\" + y.ToString("D6" + ".jpg"));
}
}
public Image DownloadImage(string _URL)
{
Image _tmpImage = null;
try
{
// Open a connection
System.Net.HttpWebRequest _HttpWebRequest = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(_URL);
_HttpWebRequest.AllowWriteStreamBuffering = true;
// You can also specify additional header values like the user agent or the referer: (Optional)
//_HttpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)";
//_HttpWebRequest.Referer = "http://www.google.com/";
// set timeout for 20 seconds (Optional)
_HttpWebRequest.Timeout = 60000;
// Request response:
System.Net.WebResponse _WebResponse = _HttpWebRequest.GetResponse();
// Open data stream:
System.IO.Stream _WebStream = _WebResponse.GetResponseStream();
// convert webstream to image
_tmpImage = Image.FromStream(_WebStream);
// Cleanup
_WebResponse.Close();
_WebResponse.Close();
}
catch (Exception _Exception)
{
// Error
Console.WriteLine("Exception caught in process: {0}", _Exception.ToString());
return null;
}
return _tmpImage;
}
你將不得不下載目錄列表並解析它以獲取文件的URL。對於解析，你可以嘗試使用HTML解析器，但使用像正則表達式這樣簡單的東西也可能在這裏工作。 – svick