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Regex reg = new Regex("<table border=0 cellpadding=0 cellspacing=0 id=Tbs rules=rows>?<g1>.*?)</table>", RegexOptions.IgnoreCase);
MatchCollection mc = reg.Matches(htmlstr); //设定要查找的字符串
if (mc.Count > 0)
{
Response.Write( mc[0].Groups["g1"].Value);
}
Regex reg = new Regex(@"(?is)<table border=0 cellpadding=0 cellspacing=0 id=Tbs rules=rows>(?><table[^>]*>(?<o>)|</table>(?<-o>)|(?:(?!</?table\b).)*)*(?(o)(?!))</table>");
Match m = reg.Match(yourStr);
if (m.Success)
{
richTextBox2.Text = m.Value;
}
(?is)(?<=<table border=0 cellpadding=0 cellspacing=0 id=Tbs rules=rows>).*?(?=</table>)