<li onmousemove="onMouse(this)" onmouseout="outMouse(this)" ><a href="#">这是a标签</a><span style="display:none;" >span标签</span></li>
js实现方法:
function onMouse(obj){ //鼠标显示隐藏 $(obj).find("span").show(); }
function outMouse(obj){//鼠标显示隐藏 $(obj).find("span").hide(); }