MzTreeView 梅花雪树形菜单通用版，MzTreeView 1.0 是数据一次性加载，客户端节点异步展示的WEB脚本树。MzTreeView的理论节点数设计上限为十万节点，在节点数三万的情况下页面打开时间小于3 秒。无限层次无限节点的数的层级组成方式：id parentId。即每个节点除本身的节点id之外还有它的父层节点id，通过这种方式就可以组合成无限层级的树了。。在MzTreeView 里都有一个虚的根节点，其ID为0，用户可见的根节点其父节点ID皆为0。(MzTreeView snow plum tree menu generic version, MzTreeView 1.0 is a one-time loading data, the client node asynchronous display WEB scr ipt tree. Theoretical upper limit of the number of nodes designed for hundreds of thousands of nodes MzTreeView, in the case of nodes thirty pages open time of less than 3 seconds. Unlimited levels of hierarchy nodes consisting of an infinite number of ways: id parentId. I.e. each node other than the own node id as well as its parent layer node id, this way can be combined into a tree hierarchy limitless. . In MzTreeView where there is a virtual root node whose ID is 0, the user can see the root of the parent node ID are all 0.)