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Regex rx = new Regex(@"/news/(?<yue>\d+)/(?<nian>\d+)/show-100.aspx");
string str = @"/news/(?<yue>\d+)/(?<nian>\d+)/show-100.aspx";
Regex reg = new Regex(@"(?i)\(\?[^\)]+\)");
foreach (Match m in reg.Matches(str))
Console.WriteLine(m.Value);
/*
(?<yue>\d+)
(?<nian>\d+)
*/
foreach (Match m in Regex.Matches(str))
{
m.Groups["yue"].Value;
m.Groups["nian"].Value;
}