jQuery中append、insertBefore、after与insertAfter方法注意事项_jquery
这里列的是针对初学jQuery者来说容易搞不懂的部分，我在这里把这些方法列了个清单，希望大家能看的懂。如下：
|
方法 |
源包装集/字串 |
目标包装集体 |
特性描述 |
|
A.append(B) |
B |
A |
若目标包装集只匹配一个元素，则源(也包括同源包装集匹配的所有元素)将被移动到目标位置；若目标包装集包含多个元素，则源将保留在原来的位置，但同时复制一份相同的副本到目标位置。 由此，若目标只匹配一个元素时，使用前述方法后源将被删除。 |
|
B.appendTo(A) |
|||
|
A.prepend(B) |
|||
|
B.prependTo(A) |
|||
|
A.before(B) |
|||
|
B.insertBefore(A) |
|||
|
A.after(B) |
|||
|
B.insertAfter(A) |
举例说明：在上图中，A.append(B)表示把B添加到与A匹配的所有元素的现有内容后面，因此B是源，A是目标包装集。
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