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appendTo(content)
V1.0概述
把所有匹配的元素追加到另一个指定的元素元素集合中。
实际上，使用这个方法是颠倒了常规的$(A).append(B)的操作，即不是把B追加到A中，而是把A追加到B中。
在jQuery 1.3.2中，appendTo, prependTo, insertBefore, insertAfter, 和 replaceAll这个几个方法成为一个破坏性操作，返回值是所有被追加的内容，而不仅仅是先前所选中的元素。所以，要选择先前选中的元素，需要使用end()方法，参见例二。
参数
contentString
用于被追加的内容
示例
描述:
把所有段落追加到ID值为foo的元素中。
HTML 代码:
<p>I would like to say: </p> <div></div><div></div>
jQuery 代码:
$("p").appendTo("div");结果:
<div><p>I would like to say: </p></div> <div><p>I would like to say: </p></div>
描述:
新建段落追加div中并加上一个class
HTML 代码:
<div></div><div></div>
jQuery 代码:
$("<p/>")
.appendTo("div")
.addClass("test")
.end()
.addClass("test2");结果:
<div><p class="test test2"></p></div> <div><p class="test"></p></div>