实现思路

实现背景,table没有分页,这是前提!!

1 . 如果后台有接口,直接改动完把列表list提交给后端

2 . 如果没有后台,增加权重字段,提交到后端

3 . 上下移动,实际就是操作数组list的顺序index

Javascript

    ================ data ===================
    HotTableList:[]

    ================ html ===================
    <template v-slot="scope">
        <el-button  @click="upindex(scope.$index,scope.row)">上移</el-button>
        <el-button  @click="downindex(scope.$index,scope.row)">下移</el-button>
    </template>

    ================ 上移 ===================
    upindex(index, row) {
      if (index > 0) {
        let upDate = this.HotTableList[index - 1];
        this.HotTableList.splice(index - 1, 1);
        this.HotTableList.splice(index, 0, upDate);
      } else {
        this.$message.warning("已经是第一条了!");
        return false;
      }
    },

    ================ 下移 ===================
    downindex(index, row) {
      if (index + 1 === this.HotTableList.length) {
        this.$message.warning("已经是最后一条了!");
        return false;
      } else {
        let downDate = this.HotTableList[index + 1];
        this.HotTableList.splice(index + 1, 1);
        this.HotTableList.splice(index, 0, downDate);
      }
    },