vue elementui el-table 默认选中

参考：https://blog.csdn.net/qyl_0316/article/details/108583481

table

      <el-table
        :data="slicingProcessList"
        class="table-box table1"
        height="250"
        ref="table1"
        @selection-change="handleSelectionChange1"
      >
        <el-table-column type="selection" width="30" align="center" />

list返回数据

        this.$nextTick(() => {
          this.slicingProcessList.forEach((row) => {
            if (row.chooseFlag == 1) {
              this.$refs["table1"].toggleRowSelection(row, true);
            }
          });
        });

多选框选中

    handleSelectionChange1(selection) {
      this.ids = selection.map((item) => item.id);
      this.codes = selection.map((item) => item.code);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },