vue+element UI实现树形表格

https://www.jianshu.com/p/d38f2857bb5b

一：在component文件夹下新建如下treeTable文件夹，里面有2个文件：

eval.js:将数据转换成树形数据

import Vue from 'vue'
export default function treeToArray(data, expandAll, parent = null, level = null) {
  let tmp = []
  Array.from(data).forEach(function(record) {
    if (record._expanded === undefined) {
      Vue.set(record, '_expanded', expandAll)
    }
    let _level = 1
    if (level !== undefined && level !== null) {
      _level = level + 1
    }
    Vue.set(record, '_level', _level)
    // 如果有父元素
    if (parent) {
      Vue.set(record, 'parent', parent)
    }
    tmp.push(record)
    if (record.children && record.children.length > 0) {
      const children = treeToArray(record.children, expandAll, record, _level)
      tmp = tmp.concat(children)
    }
  })
  return tmp
}

TreeTable.vue:树形表格组件

二：在需要的地方引入该组件：
例如：在component文件夹下新建home.vue: