#region 清除文本样式 主要应用于从网络粘贴进来的文本
[WebMethod]
public static string ClearStyle(string yourStr)//清除样式
{
ImageUrl = null;
string OldString = yourStr;
StringBuilder UpdateString = new StringBuilder();
Regex reg = new Regex(@"(?i)<img[^>]*?\s*src=(['""]?)(?<src>[^'""\s>]+)\1[^>]*>");//匹配出img标记
MatchCollection mc = reg.Matches(yourStr);
int imgsum = mc.Count;
ImageUrl = new string[imgsum];
if (imgsum > 0)
{
for (int i = 0; i < imgsum; i++)
{
int len = mc[i].Length;
int index = OldString.IndexOf(mc[i].ToString());
string indextext = OldString.Substring(0, index);
&nbs
