<a-table :columns="tableColumns" expandRowByClick :data-source="tableData" :scroll="{ x: true }"
            :pagination="false" :loading="loading" >
            <!-- 该处为引入iconfont图标 -->
            <template #expandIcon="row">
              <tamplate v-if="row.record.listObj">
                <span v-if="row.expanded" @click="getRows(row, $event)"></span>
                <span v-else @click="getRows(row, $event)"></span>
                <i class="icon i_open" style="width: 10px;height: 10px;" v-if="row.expanded"
                  @click="getRows(row, $event)"></i>
                <i class="icon i_shouqi" style="width: 10px;height: 10px;" v-else @click="getRows(row, $event)"></i>
              </tamplate>
            </template>
          </a-table>

const getRows = (props, event) => {
  // console.log(props)
  props.onExpand(props.record, event)
}