下面的代码提取标签之间的信息，可以应付一般的任务

var pt = function (s) { document.writeln("<br>" + s); }; var m = "wabc ss ab xx<div><h2>div</h2></div>ss<div>div2</div>"; function getTagContent(tg){ var str = "<" + tg + ">(?:(?!<\\/" + tg + ">).)*<\\/" + tg + ">"; var pttn = new RegExp(str,"g"); var tmp = this.match(pttn); var r = []; for(i=0;i<tmp.length;i++){ r.push(tmp[i].replace("<"+tg+">","").replace("</"+tg+">","")); } return r; } var y = getTagContent.call(m,"div"); alert(y); pt(y);

不支持嵌套结构
输出： <h2>div</h2>,div2