正则表达式高手进 高级匹配

Question

规则如下<div class='ad'><div>dfdferhgthghg</div><div>tgtgfbvf</div><div>rtrggf</div>...................div个数不定</div>匹配从<div class='ad'>到</div>的所有字符串，中间的div 必须是嵌套出现

Answer 1

string beginstr="<div class='ad'>";

string endstr="</div>"; 

Regex rg = new Regex(string.Format(@"{0}(?<g1>.*){1}", beginstr, endstr));
           if (rg.IsMatch(input))
           {
               return rg.Match(input).Groups["g1"].Value;
           }