jQuery 如何获取具有特定 id 的 <div> 中的所有 <li> 元素？
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How do I get all the <li> elements within a <div> having a specific id?
提问by DenaliHardtail
Seems simple enough and I think I've done it before once or twice. What is the jQuery selector syntax for grabbing all the <li>elements inside a <div>with id "chapters"?
看起来很简单，我想我以前做过一两次。用于抓取id为“章节”的所有<li>元素的jQuery选择器语法是什么<div>？
I can get the <li>elements with $('li')and the div with $('#chapters')but I need to limit the selection to <li>within that div.
我可以获取<li>元素 with$('li')和 div ，$('#chapters')但我需要将选择限制<li>在该 div 内。
Here is the markup, followed by the jQuery selector. It doesn't work and now I'm at a loss as to why:
这是标记，然后是 jQuery 选择器。它不起作用，现在我不知道为什么：
<li>1 - outside the div</li>
<div id="chapters">
<li>One</li>
<li>Two</li>
<li>Three</li>
</div>
<li>2 - outside the div</li>
JQuery selector:
JQuery 选择器：
$('#chapters li').css("background-color","red");
回答by Felix Kling
回答by Sumit Rawat
I think you need to use Period(.) instead of (#) in the selector. Below is the code:
我认为您需要在选择器中使用 Period( .) 而不是 ( #) 。下面是代码：
$('.chapters li').css("background-color","red");
