IE支持:innerHTML与innerText
FF与chrome支持:innerHTML与textContent
例子:
<div id="div">123<p>abc</p></div>
<script>
var div=document.getElementById("div");
alert(div.innerHTML);//IE显示:123<P>abc</P>;FF与chrome显示:123<p>abc</p>
alert(div.innerText);//IE显示:123abc;FF与chrome显示:undefined
alert(div.textContent);//IE显示:undefined;FF与chrome显示:123abc
</script>