业务需求：
点击查询弹列表框

勾选列表选项保存

可删除可重新查询列表添加

遇到的问题：删除之后查询列表selection回显问题
解决：@row-click配合:reserve-selection="true"使用

      <el-table
        ref="refPlanTable"
        :data="refPlanTableData"
        tooltip-effect="dark"
        :max-height="400"
        :height="400"
        :header-cell-style="{textAlign: 'center'}"
        :cell-style="{textAlign:'center'}"
        @selection-change="handleSelectionChangeRef"
        @row-click="handleRowClickRef"
        :row-key="getRowKey"
      >
        <el-table-column type="selection" width="55" fixed="left" :reserve-selection="true"></el-table-column>
        </el-table>

handleRowClickRef(row){ this.$refs.refPlanTable.toggleRowSelection(row); },
表格data赋值的地方添加
注意：:reserve-selection="true"会记录保存上一次选中的状态，所以每次赋值前要先清空选中状态

          this.refPlanTableData=res.result;
          let string = this.multipleSelectionRef.map(item => item.identity);
          console.log(string);
          this.$nextTick(() => {
            this.refPlanTableData.forEach(item=>{
              this.$refs.refPlanTable&&this.$refs.refPlanTable.toggleRowSelection(item,false);
              if(string.includes(item.identity)){
                this.$refs.refPlanTable&&this.$refs.refPlanTable.toggleRowSelection(item,true);
              }
            })
          })