Vue2组件tree实现无限级树形菜单

npm install
npm run dev

<template>
 <div style="width:300px;">
 <tree ref ='tree' :treeData="treeData" :options="options" @node-click='handleNode'/>
 </div>
</template>
<script>
import Tree from '../components/tree/tree.vue'
export default {
 name: 'test',
 data () {
 return {
  options: {
  showCheckbox: true,
  search: {
   useInitial: true,
   useEnglish: false,
   customFilter: null
  }
  },
  treeData: [
  {
   id: 1,
   label: '一级节点',
   open: true,
   checked: false,
   parentId: null,
   visible: true,
   searched: false,
   children: [
   {
    id: 2,
    label: '二级节点-1',
    checked: false,
    parentId: 1,
    searched: false,
    visible: true
   },
   {
    label: '二级节点-2',
    open: true,
    checked: false,
    id: 3,
    parentId: 1,
    visible: true,
    searched: false,
    children: [
    {
     id: 4,
     parentId: 3,
     label: '三级节点-1',
     visible: true,
     searched: false,
     checked: false
    },
    {
     id: 5,
     label: '三级节点-2',
     parentId: 3,
     searched: false,
     visible: true,
     checked: false
    }
    ]
   },
   {
    label: '二级节点-3',
    open: true,
    checked: false,
    id: 6,
    parentId: 1,
    visible: true,
    searched: false,
    children: [
    {
     id: 7,
     parentId: 6,
     label: '三级节点-4',
     checked: false,
     searched: false,
     visible: true
    },
    {
     id: 8,
     label: '三级节点-5',
     parentId: 6,
     checked: false,
     searched: false,
     visible: true
    }
    ]
   }
   ]
  }
  ]
 }
 },
 components: {Tree}
}
</script>

 options: {
  showCheckbox: true, //是否支持多选
  search: {
   useInitial: true, //是否支持首字母搜索
   useEnglish: false, //是否是英文搜索
   customFilter: null // 自定义节点过滤函数
  }

 /* 节点元素 */
 {
  id: 1, //节点标志
  label: '一级节点', //节点名称
  open: true, // 是否打开节点
  checked: false, //是否被选中
  parentId: null, //父级节点Id
  visible: true, //是否可见
  searched: false, //是否是搜索值
  children: [] //子节点
 }