提取CuteEditor编辑器中的图片地址,并将远程图片保存到本地

using System.Net;

Regex   re   =   new   Regex(@"src\s*=\s*(?:([""'])(?<src>[^""']+)\1|(?<src>[^\s>]+))",   RegexOptions.IgnoreCase   |   RegexOptions.Singleline);   
            MatchCollection   mc   =   re.Matches(this.Editor1.XHTML.ToString());   
            foreach   (Match   m   in   mc)   
            {   
                string url=m.Groups["src"].Value;
                string filepath=url;
                if(url.Substring(0,7).ToLower()=="http://")
                {
                    string KuoZhangMing="."+url.Substring(url.LastIndexOf(".")+1);
                    string path = HttpContext.Current.Server.MapPath(@"/MLXZ/Uploads/Download/");
                    string filename=DateTime.Now.ToString("yyyyMMddHHmmss")+KuoZhangMing;
                    path=path+filename;
                    filepath=@"/MLXZ/Uploads/Download/"+filename;
                    WebClient myWebClient = new WebClient();
                    myWebClient.DownloadFile(url,path);
                    this.Editor1.Text=this.Editor1.XHTML.ToString().Replace(url,filepath);
                }
                Pic.Items.Add(new   ListItem(filepath,filepath)); 
            }

上面代码实现了提取编辑器中的图片地址,如果图片地址为网上的,则会自动保存到本地.其它是的editor1为一个编辑器CuteEditor