input type="text" readyonly 也可以用disable="disable" 不过disable 提交不传递值，等于把标签都费力
select
<span onmousemove="this.setCapture();" onmouseout="this.releaseCapture();" onfocus="this.blur();">
<select ><option selected >aaa</option><option>bbb</option></select>
<select ><option selected >aaa</option><option>bbb</option></select>
</span> 这段代码好像在Firefox中不行