Question

JS或JQ里怎么获取到多个id相同的标签内的数字进行比大小？

<script>
$(function(){
$('ul li').click(function(){
var div = $(this).children('div');
var span = div.children('span').html();
console.log(span);
})
})
</script>
<ul>
<li>
<div>
<span id="num">55</span>
</div>
</li>
<li>
<div>
<span v>22</span>
</div>
</li>
<li>
<div>
<span id="num">33</span>
</div>
</li>
</ul>

Answer 1

不用id不就行了，换一个属性名，随便取。$("ul li[属性名='值']")选择

Answer 2

不用id不就行了,换一个属性名,随便龋$("ul li[属性名='值']")选择