javascript 获取括号内的字符串

废话少说直接上代码

<script type="text/javascript">
var reg=/\(\w*\)/gi;
var regend=/w*/gi;
var str="The best things in life are (free)(test)" ;
var res=str.match(reg);
alert(res);
if(res!=null)
{
 for(var i=0;i<res.length;i++)
{
  alert(res[i].substring(1,res[i].length-1));
}
}
</script>