el-table默认排序设置

1.给el-table标签加入属性:default-sort如下

 <el-table
      :data="tableData"
      border
      style="width: 100%"
      v-loading="loading"
      :height="400"
      :default-sort="{ prop: 'operatingTime', order: 'descending' }"
    >

2.给el-table-column加入属性sortable,sort-orders如下

 <el-table-column
        show-overflow-tooltip
        align="center"
        prop="operatingTime"
        label="出(入)库时间"
        width="180"
        :sortable="true"
        :sort-orders="['descending', 'ascending']"
      ></el-table-column>