JQ元素上移(互换位置)
js代码
function move_up(that)
{
var a = that.parent('li').prev();
var b = that.parent('li');
if (a.length >= 1) {
console.log(a.length);
b.insertBefore(a);
}
html代码
<li>
<a href="javascript:;" onclick="move_up($(this))">上移</a>
</li>
<li>
<a href="javascript:;" onclick="move_up($(this))">上移</a>
</li>