html

<el-select
  v-model="dform.e_id"
  filterable
  remote
  reserve-keyword
  placeholder="请输入关键词"
  :remote-method="remoteMethod"
  :loading="loading">
  <el-option
    v-for="item in optionsdata"
    :key="item.id"
    :label="item.name"
    :value="item.id">
  </el-option>
</el-select>

js

// 搜索选择
remoteMethod(query) {
  if (query !== '') {
    this.loading = true
    this.getequipmentistfun(query) //方法
  } else {
    this.options = []
  }
},
数据处理

// 父级选中的值
handfuleChange(e) {
  console.log(e)
  this.dform.p_id = e[e.length-1]
},