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using System.Text.RegularExpressions;
string ohtml = this.TextBox1.Text;
System.Text.RegularExpressions.MatchCollection m;
//ÌáÈ¡×Ö·û´®µÄͼƬ
m = Regex.Matches(ohtml, "(<img).*?>");
for (int i = 0; i < m.Count; i++)
{
string ostr = m[i].ToString();
//ÌáȡͼƬµÄµØÖ·
System.Text.RegularExpressions.MatchCollection m2;
m2 = Regex.Matches(ostr, "(src=)['|\"].*?['\"]");
for (int j = 0; j < m2.Count; j++)
{
string strTemp = m2[j].ToString();
strTemp = strTemp.Replace("src=", "");
strTemp = strTemp.Replace("\"", "");
strTemp = strTemp.Replace("'", "");
 
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