正则:查找img标签开头的图片路径[iI][mM][gG][\s]*[sS][rR][cC][\s]*=[\s'"]*(?<ref_value>.*?(\.gif|\.jpg|\.png))查找Function中的图片路径[a-zA-Z_][a-zA-Z0-9_]+[\s]*\([^)]+?('|")(?<ref_value>[a-zA-Z0-9/\\-_\.]+?(\.gif|\.jpg|\.png))('|")[^)]*\)查找background标签的图片路径background="(?<ref_value>[^"]+)查找URL的图片路径:[\s]*url[\s]*\([\s"']*(?<ref_value>["']*[^)]+)通用的:("|')(?<ref_value>[^"']+?(\.gif|\.png|\.jpg))("|')url\(['\"]?\s*(?<ref_value>[^>]+?)['\"]?\s*\)Cimg[\d+]*[\s]*\([\s"']*(?<ref_value>[^"')]+)private IList<string> MatchImgPath(string content,string regexPattern) { IList<string> _ret = new List<string>(); Regex reg = new Regex(regexPattern); string _imgPath = ""; MatchCollection mc = reg.Matches(content); if (mc != null && mc.Count > 0) { foreach (Match match in mc) { if (match.Success == false || match.Value == null || match.Value == "") continue; foreach (string name in reg.GetGroupNames()) { if (name == null || name == "" || name == "0") continue; if (name == "ref_value" && match.Groups[name].Value != null && match.Groups[name].Value != "") { _imgPath = match.Groups[name].Value; if(!_ret.Contains(_imgPath.ToLower())) _ret.Add(_imgPath.ToLower()); } } } } return _ret; }