分组正则备忘

stringurl=" http://www.magnum4d.my/popup/draw-calendar.aspx";
stringdata_web=WC.DownloadString(url);
StringBuilders=newStringBuilder();
s.Append("<spanid="lbl_NextdrawID">");
s.Append("[ sS]*?<tr><td>(?<s1>[sS]*?)</td><td>(?<s2>[sS]*?)</td></tr>");
s.Append("[ sS]*?<tr><td>(?<s12>[sS]*?)</td><td>(?<s22>[sS]*?)</td></tr>");
s.Append("[ sS]*?<tr><td>(?<s13>[sS]*?)</td><td>(?<s23>[sS]*?)</td></tr>");
s.Append("[ sS]*?<tr><td>(?<s14>[sS]*?)</td><td>(?<s24>[sS]*?)</td></tr>");
s.Append("[ sS]*?<tr><td>(?<s15>[sS]*?)</td><td>(?<s25>[sS]*?)</td></tr>");
s.Append("[ sS]*?<tr><td>(?<s16>[sS]*?)</td><td>(?<s26>[sS]*?)</td></tr>");
Regexreg=newRegex(s.ToString());//获取<spanphaseData>里面的值
MatchCollectionmc=reg.Matches(data_web);
foreach(Matchminmc)
{
#regionM4d期号采集
stringczperiod1=m.Groups["s1"].ToString().Replace("/","")+"351";

}