element ui 表格提交时获取所有选中的checkbox的数据

<el-table ref="multipleTable" :data="appList" @selection-change="changeFun">
  <el-table-column type="selection" width="55" class="selection" prop=‘uuid‘ :selectable=‘checkboxInit‘ @selection-change="changeFun"></el-table-column>

  <el-table-column label="">
    <template scope="scope"></template>
  </el-table-column>
  <el-table-column prop="username" label="username"></el-table-column>
  <el-table-column prop="createTime" label="创建时间"></el-table-column>
</el-table>

//复选框状态改变
changeFun(val) {
  this.multipleSelection = val;
}