1//自动保存远程图片
 2
 3                WebClient client = new WebClient();
 4                //备用Reg:<img.*?src=([\"\'])(http:\/\/.+\.(jpg|gif|bmp|bnp))\1.*?>
 5                Regex reg = new Regex("IMG[^>]*?src\\s*=\\s*(?:\"(?<1>[^\"]*)\"|'(?<1>[^\']*)')", RegexOptions.IgnoreCase);
 6                MatchCollection m = reg.Matches(TextBox1.Text);
 7
 8                foreach (Match math in m)
 9                {
10                    string imgUrl = math.Groups[1].Value;
11                    //在原图片名称前加YYMMDD重名名并上传
12                    Regex regName = new Regex(@"\w+.(?:jpg|gif|bmp|png)", RegexOptions.IgnoreCase);
13
14                    string strNewImgName = DateTime.Now.ToShortDateString().Replace("-", "") + regName.Match(imgUrl).ToString();
15
16                    try
17                    {
18                        //保存图片
19                        client.DownloadFile(imgUrl, Server.MapPath("ImgUpload/Auto/" + strNewImgName));
20
21                    }
22                    catch
23                    {
24                    }
25                    finally
26                    {
27
28                    }
29
30                client.Dispose();
31            }
32
33