vue-js-elementUI表格上移下移和手写批量删除不调后端接口

这里是HTML代码

<!--工具条-->
    <el-row>
      <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
        <el-form class="title-bar" style="border-bottom: 2px solid #eef1f6;margin-bottom: 10px;">
          <el-form-item style="font-weight: bold;" label="条目列表"></el-form-item>
          <div>
            <el-form-item style="float: right">
              <el-button
                style="margin-left: 10px"
                type="danger"
                @click="batchRemove"
                :disabled="this.sels.length===0"
              >批量删除</el-button>
            </el-form-item>
            <el-form-item style="float: right">
              <el-button type="primary" @click="handleAdd">新增</el-button>
            </el-form-item>
          </div>
        </el-form>
      </el-col>
    </el-row>
    <!--列表-->
    <el-table
      border
      :data="lists"
      highlight-current-row
      v-loading="listLoading"
      style="width: 100%;"
      @selection-change="selsChange"
    >
      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column type="index" label="序号" width="80" align="center"></el-table-column>
      <el-table-column prop="itemName" label="条目名称" align="center"></el-table-column>
      <el-table-column prop="num" label="播放模式" align="center">
        <template slot-scope="scope">
          <span>{
    
    {
    
    scope.row.itemModel==0?'循环播放':scope.row.itemModel==1?'随机播放':'暂无'}}</span>
        </template>
      </el-table-column>
      <el-table-column prop="frimName" label="歌曲数量" align="center">
        <template slot-scope="scope">
          <span>{
    
    {
    
    scope.row.musicUuidList.length?scope.row.musicUuidList.length:'0'}}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="320" align="center">
        <template slot-scope="scope">
          <el-button
            style="margin-bottom: 4px;"
            size="small"
            type="primary"
            @click="handleEdit(scope.$index, scope.row)"
          >编辑</el-button>
          <el-button
            style="margin-bottom: 4px;"
            size="small"
            :disabled="scope.$index == 0"
            type="primary"
            @click="moveUpward(scope.row, scope.$index)"
          >上移</el-button>
          <el-button
            style="margin-bottom: 4px;"
            size="small"
            type="primary"
            :disabled="(scope.$index + 1) == lists.length"
            @click="moveDown(scope.row, scope.$index)"
          >下移</el-button>
          <el-button
            style="margin-bottom: 4px;"
            size="small"
            type="danger"
            @click="handleDel(scope.$index, scope.row)"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

下面是data数据

data() {
    
    
    return {
    
    
		sels: [],
      	listLoading: false,
      	lists: JSON.parse(sessionStorage.getItem("lists"))
        ? JSON.parse(sessionStorage.getItem("lists"))
        : [],
     	 siteForm: JSON.parse(sessionStorage.getItem("listenInfo"))
        ? JSON.parse(sessionStorage.getItem("listenInfo"))
        : {
    
    },
        }
}

下面是逻辑代码

  	//批量删除
    selsChange: function(sels) {
    
    
      this.sels = sels;
      console.log(this.sels);
    },
    batchRemove: function() {
    
    
      var ids = this.sels.map(item => item.id);
      this.$confirm("确认删除选中记录吗？", "提示", {
    
    
        type: "warning"
      })
        .then(() => {
    
    
          // this.listLoading = true;
          // console.log(ids.map(Number))
          ids.map(Number).forEach(item => {
    
    
          for (let i = this.lists.length - 1; i >= 0; i--) {
    
      
              if (this.lists[i].id == item) {
    
    
                this.lists.splice(i, 1);
              }   
            // console.log(this.lists[i])
          }
          });
        sessionStorage.setItem("lists", JSON.stringify(this.lists))
        })
        .catch(() => {
    
    });
    },
    //删除
    handleDel: function(index, row) {
    
    
      this.$confirm("确认删除该条目吗？", "提示", {
    
    }).then(() => {
    
    
        this.addLoading = true;
        this.lists.splice(index, 1);
        this.$message({
    
    
          message: "删除成功",
          type: "success"
        });
      });
    },
    // 上移
    moveUpward(row, index) {
    
    
      if (index > 0) {
    
    
        let upData = this.lists[index - 1];
        this.lists.splice(index - 1, 1);
        this.lists.splice(index, 0, upData);
      } else {
    
    
        this.$message({
    
    
          message: "已经是第一条，上移失败",
          type: "warning"
        });
      }
    },
    // 下移
    moveDown(row, index) {
    
    
      if (index + 1 == this.lists.length) {
    
    
        this.$message({
    
    
          message: "已经是最后一条，下移失败",
          type: "warning"
        });
      } else {
    
    
        let downData = this.lists[index + 1];
        this.lists.splice(index + 1, 1);
        this.lists.splice(index, 0, downData);
      }
    }

效果如下：