### 返回值:Array<Element(s)>:last-child
### *V1.1.4*概述
匹配最后一個子元素
':last'只匹配一個元素，而此選擇符將為每個父元素匹配一個子元素
### 示例
#### 描述:
在每個 ul 中查找最后一個 li
##### HTML 代碼:
~~~
<ul>
<li>John</li>
<li>Karl</li>
<li>Brandon</li>
</ul>
<ul>
<li>Glen</li>
<li>Tane</li>
<li>Ralph</li>
</ul>
~~~
##### jQuery 代碼:
~~~
$("ul li:last-child")
~~~
##### 結果:
~~~
[ <li>Brandon</li>, <li>Ralph</li> ]
~~~
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