string pattern = @"(?<=(?:src //s?=//s*)?)(['""])?(?
(?:http://)?[^/s'""]+?(?:"+ restype.Replace(".", "//.") + "))//1?"; 如从以下串中找出,链接地址。
另一种是单独直接在串: "/Upfile/20101018/2010101838225721.swf" "http://www.itwz.net/Upfile/20101018/2010101838225721.swf" [转载请保留]:IT网摘 http://www.itwz.net/IT/20101216/n96147729.html