复制代码 代码如下:

<div class=\"warpper\">
<span class=\"content\">
A
<span>123</span>
</span>
</div>

<script type=\'text/javascript\' src=\'./jquery-1.7.2.min.js\'></script>
<script type=\'text/javascript\'>
var a = $(\".content\")[0].firstChild.data;
function al(){
alert(a);
}
window.onload=al;
</script>