时间倒叙正序

  <div class="add-left fl">
        <el-dropdown trigger="click" @command="command">
          <span class="el-dropdown-link">
            {{value}}
            <i class="el-icon-sort el-icon--right"></i>
          </span>
          <el-dropdown-menu slot="dropdown" style="left: 20px;" class="dropMenu">
            <el-dropdown-item command="1">办理时间正序</el-dropdown-item>
            <el-dropdown-item command="2">办理时间倒序</el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
      </div>

  //时间升序降序的方法
    command(command) {
      this.sort = command;
      if (command == 1) {
        this.value = "办理时间正序";
      } else {
        this.value = "办理时间倒序";
      }
      this.currentPage = 1;
      this.getData();
    },

  value: "办理时间倒序",
      sort: null,