基于ant-design-vue中a-tree的搜索功能

项目开发是用的vue+ant-design-vue
最近收到一个新的搜索需求，需要对目录树进行搜索，并将搜索到的值进行高亮与展开显示。
废话不多说直接上代码，以下代码只是一个简单的demo。

<template>
  <div>
    <a-input-search v-model="searchStr" placeholder="输入搜选项" style="width:200px;" @search="onSearch"></a-input-search>
    <!-- selectedKeys是选中项key的集合，expandedKeys是展开项key的集合 -->
    <a-tree
      v-model="checkedKeys"
      :treeData="treeData"
      :selectedKeys="selectedKeys"
      :expandedKeys="expandedKeys"
      @expand="onExpand"
      :autoExpandParent="autoExpandParent"
      :replaceFields="replaceFields"
      @select="onSelect"
    >
      <template slot='title' slot-scope={
   name}>
        <span v-html="name.replace(new RegExp(searchValue,'g'),'<span style=color:#f50>'+ searchValue +'</span>')"></span>
      </template>
    </a-tree>
  </div>
</template>
<script>
  const treeData = [
    {
   
      name: '0-0',
      key: '0-0',
      scopedSlots: {
   title: "title"},
      children: [
        {
   
          name: '0-0-0',
          key: '0-0-0',
          scopedSlots: {
   title: "title"},
          children: [
            {
    name: '0-0-0-0', key: '0-0-0-0',scopedSlots:{
   title: "title"},children:[
              {
    name: '0-0-0-0-0', key: '0-0-0-0-0',scopedSlots:{
   title: "title"}, children:[
                  {
   name: '0-0-0-0-0-0', key: '0-0-0-0-0-0',scopedSlots:{
   title: "title"}},
                  {
   name: '0-0-0-0-0-1', key: '0-0-0-0-0-1',scopedSlots:{