vue 递归组件的简单使用示例

{
 type: 'or',
 valueList: [
  {	
   condition: '最近7天登录次数',
   login: '!=',
   value: 45
  },
  {	
   condition: '最近7天登录次数',
   login: '!=',
   value: 45
  },
  {
   type: 'and'
   valueList: [
   	{
     condition: '最近7天登录次数',
     login: '!=',
     value: 45
    }
   ]
  }
 ]
}

<template>
 <div class="label-list">
  <el-tag type="primary" size="mini" class="logic">{{ typeDict[treedata.type] }}</el-tag>
  <template v-for="(item, index) in treedata.valueList">
   <ul v-if="!item.hasOwnProperty('valueList')" :key="'rule_' + index">
    <li>{{ item.condition }} {{ item.logic }} {{ item.value }}</li>
   </ul>
  </template>
  <template v-for="(item, index) in treedata.valueList">
   <!-- 此处判断有 valuelist 因此再次调用渲染本组件 进行子项的渲染 -->
   <label-shows-view v-if="item.hasOwnProperty('valueList')" :key="'tree_' + index" :treedata="item"></label-shows-view>
  </template>
 </div>
</template>
<script>
const _TYPE = {
 'and': '且',
 'or': '或'
}
export default {
 name: 'LabelShowsView',
 props: {
  treedata: {
   type: Object,
   required: true
  }
 },
 data() {
  return {
   typeDict: _TYPE
  }
 }
}
</script>

<!-- labelRulesView.vue -->
<!-- 这个自定义组件就是本组件 即递归的组件 -->
<label-rules-view v-if="item.hasOwnProperty('valueList')" :label-list="labelList" :treedata="item" :current-index="index" @delGroup="funDelGroup"></label-rules-view>
<!-- 本组件监听 delGroup 事件 -->
 
<el-button size="mini" type="danger" icon="el-icon-delete" class="operate-btn" @click="handleDelNewGroup(currentIndex)"></el-button>

// 删除某个组
handleDelNewGroup(index) {
 this.$emit('delGroup', index) // 向上层组件触发事件
},
funDelGroup(index) {
 this.treedata.valueList.splice(index, 1)
},