如题，中文或是英语网站都可以。谢谢~~~~

这个恐怕没有, 也不需要. 各人对树型结构的要求各异, 关键在于生成树的算法而已. 网上有很多人写了树型的代码, 你可以参考. 也可以在这里和我讨论, 我也写过.

我在网上是看过不少。就是想用AJAX实现。谢谢你的指点。

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