在vue表格中如何选中之后切换页，勾选的数据不刷新

 

<el-table ref="stuTable" v-loading="listLoading" :row-key="rowKey" :data="studentList" border>
              <el-table-column type="selection" :reserve-selection="true" label="#" align="center" />
              <el-table-column
                label="序号"
                type="index"
                align="center"
                width="60"
              >
                <template slot-scope="scope">
                  <span>{{ (page - 1) * size + scope.$index + 1 }}</span>
                </template>
              </el-table-column>

　　

    rowKey(row) {
      return row.id
    },

只需添加上加黑的代码 即可实现