vue tree树结构以select格式展示

1、添加依赖

npm install --save @riophae/vue-treeselect

示例代码

<template>
  <div id="app">
    <treeselect v-model="value" :multiple="true" :options="options" />
  </div>
</template>

<script>
  // import the component
  import Treeselect from '@riophae/vue-treeselect'
  // import the styles
  import '@riophae/vue-treeselect/dist/vue-treeselect.css'

  export default {
    // register the component
    components: { Treeselect },
    data() {
      return {
        // define the default value
        value: null,
        // define options
        options: [ {
          id: 'a',
          label: 'a',
          children: [ {
            id: 'aa',
            label: 'aa',
          }, {
            id: 'ab',
            label: 'ab',
          } ],
        }, {
          id: 'b',
          label: 'b',
        }, {
          id: 'c',
          label: 'c',
        } ],
      }
    },
  }
</script>

 只允许选择子节点数据：

:disable-branch-nodes="true"

 不被遮挡：

:appendToBody="true"

获取label数据：

@select="se"

se(val){
   val.label;
},

 选择框限制展示条数

:limit="1"