将网页中的图片的url 保存到本地的函数

[plglenn20]

！

[十八道胡同]

那就试着用正则提取一下吧

[plglenn20]

问题修改： 如何正则去重：
images/bg2.gif
images/bg1.gif
images/bg3.gif
images/icon02.gif
images/icon01.gif
images/bg11.gif
images/bg10.gif
images/new.gif
images/bg12.gif
images/bg13.gif
images/bg14.gif
images/icon01.gif
images/bg2.gif
images/bg1.gif
images/bg13.gif
images/bg3.gif
images/bg13.gif
images/icon01.gif
images/bg5.gif
images/bg4.gif
images/bg6.gif
images/bg8.gif
images/bg7.gif
images/bg9.gif
images/pic.gif
images/bg2.gif
images/bg1.gif
images/icon01.gif
images/bg3.gif
images/bg2.gif
images/bg1.gif
images/icon01.gif
images/bg3.gif
images/bg16.gif
images/bg15.gif
images/bg17.gif
images/bar.gif
images/bg19.gif
images/bg18.gif
images/bg20.gif
images/bg28.gif
images/bg27.gif
images/bg29.gif
images/bg30.gif
images/bg22.gif
images/bg21.gif
images/bg23.gif
images/bg31.gif
images/icon001.gif
images/icon002.gif
images/icon003.gif
images/icon004.gif
images/icon005.gif
images/icon006.gif
images/icon007.gif
images/icon008.gif
images/icon009.gif
images/icon010.gif
images/bg25.gif
images/bg24.gif
images/bg13.gif
images/bg26.gif
images/icon01.gif
images/save.png

[wuyq11]

MatchCollection matchs = Regex.Matches("", @ " <img\s[^> ]*src=([ " " ']*)(? <src> [^ ' " "]*)\1[^> ]*> ", RegexOptions.IgnoreCase);
foreach (Match m in matchs) {
Response.Write(m.Groups[ "src "].Value+ " <br> ");
}

[wiki14]

<SCRIPT   LANGUAGE="JavaScript">   
  <!--   
  var   s   =   "<img   onfocus=”a()“   onclick='b()'   onblur='()'   src='upfile/20000103.jpg'>";   
  var   s   =   "<img   onfocus='a()'   src='upfile/20000103.gif'   onclick='b()'>";   
  var   s   =   "<img   onfocus='a()'   src='upfile/20000103.gif'   onclick='b()'   onblur='()'>";   
  var   r   =   /<img[^>]+?src=(\"|\')([^\'\"]+)\1/i;   
  alert(s.match(r)[2]);   
  //-->   
  </SCRIPT>

http://topic.csdn.net/t/20051017/18/4332170.html

[wuyq11]

WebRequest request = WebRequest.Create("");
WebResponse response = request.GetResponse();
Stream reader = response.GetResponseStream();
FileStream writer = new FileStream("D:\\a.gif", FileMode.OpenOrCreate, FileAccess.Write);
byte[] buff = new byte[512];
int c = 0; while ((c=reader.Read(buff, 0, buff.Length)) > 0)
{
writer.Write(buff, 0, c);
}
writer.Close();

[wiki14]

正则:background\:url\((?<ImgUrl>.*?)\)
结果:
images/bg25.gif
images/bg24.gif

[mngzilin]

Regex.Matches就可以去重

[vip__888]

正则....

[十八道胡同]

有原字符串吗？
我们可以试着写写

[孟子E章]

保存到本地？你写一个winform程序，使用 webbrowser找到所有的图片地址，使用
WebClient wc = new WebClient();
wc.DownloadFile("http://dotnet.aspx.cc/Images/logoSite.gif","c:\\xx.gif");
就可以了

[十八道胡同]

正则能不能去重我不知道，但是用string.contains是可以去重的

[zhouzangood]

好冷，手都僵了......