[C#源代碼]百度網盤地址批量轉換工具

  流程起始很簡單,就是模擬浏覽器去訪問百度盤的地址，然後提取其中的實際地址，核心函數就是這個

[csharp] 
//百度盤地址 http://pan.baidu.com/share/link?shareid=112694&uk=455690558   
       private string ConvertBaiduPan_Thunder(string strBaiduPan) 
       { 
           if (strBaiduPan == null) 
           { 
               return null; 
           } 
 
           string strThunder = null; 
           //訪問百度盤地址  
           string strBaiduPanWebPage = MyHttp.GetHtml(strBaiduPan); 
           if (strBaiduPanWebPage == "") 
           { 
               MessageBox.Show("訪問地址失敗!"+ strBaiduPan); 
               goto End; 
           } 
 
           //取出  <a class="dbtn cancel b-fr" href="http://www.baidupcs.com/file/8d29f2f27f5939fabc7260e23f4739dd?fid=455690558-250528-2069072566&time=1358472203&sign=FDTA-DCb740ccc5511e5e8fedcff06b081203-E0ZjQ1awurzhDkjhV5c%2BtTN05nA%3D&expires=8h&sh=1&response-cache-control=private" id="downFileButtom"><b>下載(2.44M)</b></a>  
           //匹配正則表達式  <a class="dbtn cancel b-fr" href="http://.*?">*.id="downFileButtom"><b>  
           Regex r = new Regex("<a class=\"dbtn cancel b-fr\" href=\"http://.*?\">*.id=\"downFileButtom\"><b>"); 
           //開始匹配  
           Match m = r.Match(strBaiduPanWebPage); 
           string strLink = null; 
           while (m.Success) 
           { 
               strLink = m.Groups[0].Value; 
 
               //提取出其中href的值  http://www.baidupcs.com/file/8d29f2f27f5939fabc7260e23f4739dd?fid=455690558-250528-2069072566&time=1358470090&sign=FDTA-DCb740ccc5511e5e8fedcff06b081203-OiOC3pLc236790OikWTlSsTHWjc%3D&expires=8h&sh=1&response-cache-control=private" id="downFileButtom"  
               Regex r2 = new Regex("http.*\""); 
               //開始匹配  
               Match m2 = r2.Match(strLink); 
               while (m2.Success) 
               { 
                   strLink = m2.Groups[0].Value; 
 
                   strLink = strLink.Replace("&", "&"); 
                   //    包含雙引號 " id="downFileButtom"  
                   strLink = strLink.Replace("\"",""); 
                   strLink = strLink.Replace("id=downFileButtom", ""); 
                   m2 = m2.NextMatch(); 
               } 
               //從上一個匹配結束的位置開始下一個匹配  
               m = m.NextMatch(); 
 
               strThunder = strLink; 
           }                      
            
           End: 
           return strThunder; 
       } 

 //百度盤地址 http://pan.baidu.com/share/link?shareid=112694&uk=455690558
        private string ConvertBaiduPan_Thunder(string strBaiduPan)
        {
            if (strBaiduPan == null)
            {
                return null;
            }

            string strThunder = null;
            //訪問百度盤地址
            string strBaiduPanWebPage = MyHttp.GetHtml(strBaiduPan);
            if (strBaiduPanWebPage == "")
            {
                MessageBox.Show("訪問地址失敗!"+ strBaiduPan);
                goto End;
            }

            //取出  <a class="dbtn cancel b-fr" href="http://www.baidupcs.com/file/8d29f2f27f5939fabc7260e23f4739dd?fid=455690558-250528-2069072566&time=1358472203&sign=FDTA-DCb740ccc5511e5e8fedcff06b081203-E0ZjQ1awurzhDkjhV5c%2BtTN05nA%3D&expires=8h&sh=1&response-cache-control=private" id="downFileButtom"><b>下載(2.44M)</b></a>
            //匹配正則表達式  <a class="dbtn cancel b-fr" href="http://.*?">*.id="downFileButtom"><b>
            Regex r = new Regex("<a class=\"dbtn cancel b-fr\" href=\"http://.*?\">*.id=\"downFileButtom\"><b>");
            //開始匹配
            Match m = r.Match(strBaiduPanWebPage);
            string strLink = null;
            while (m.Success)
            {
                strLink = m.Groups[0].Value;

                //提取出其中href的值  http://www.baidupcs.com/file/8d29f2f27f5939fabc7260e23f4739dd?fid=455690558-250528-2069072566&time=1358470090&sign=FDTA-DCb740ccc5511e5e8fedcff06b081203-OiOC3pLc236790OikWTlSsTHWjc%3D&expires=8h&sh=1&response-cache-control=private" id="downFileButtom"
                Regex r2 = new Regex("http.*\"");
                //開始匹配
                Match m2 = r2.Match(strLink);
                while (m2.Success)
                {
                    strLink = m2.Groups[0].Value;

                    strLink = strLink.Replace("&", "&");
                    //    包含雙引號 " id="downFileButtom"
                    strLink = strLink.Replace("\"","");
                    strLink = strLink.Replace("id=downFileButtom", "");
                    m2 = m2.NextMatch();
                }
                //從上一個匹配結束的位置開始下一個匹配
                m = m.NextMatch();

                strThunder = strLink;
            }                    
           
            End:
            return strThunder;
        }
        以上這個函數就是取出百度網盤中文件地址的函數了。很簡單的網頁抓取和文字匹配是吧。  如果有什麼不明白的，自己看源碼，或者給我留言。作為小白，樂意和眾多菜鳥交流。