一言不足以毕之，请LOOK代码：
string text = " 订单5|本次付款：4783|本单结清,";
string pat = @"(\d+)";
Regex r = new Regex(pat, RegexOptions.IgnoreCase);
Match m = r.Match(text);
int matchCount = 0;
while (m.Success)
{
++matchCount;
Group g = m.Groups[1];
Response.Write("Match" + matchCount +"："+ g + "<br />");
m = m.NextMatch();
}
