介绍：点击按钮打开dialog嵌套表格，勾选数据，点击确认关闭弹窗并且回显选中得数据，回显的数据被删除，dialog里面的数据也被取消勾选，废话不多说 上代码！！！
这里的勾选回显-外层
dialog嵌套表格-里层
<template><div class="award-page"><el-button @click="handlerService" class="btn">选择服务</el-button><el-table:data="tableData"style="width: 100%"><el-table-columnprop="date"label="项目名称"></el-table-column><el-table-columnprop="name"label="服务分类"></el-table-column><el-table-columnprop="address"label="价值"></el-table-column><el-table-columnprop="address"label="描述"></el-table-column><el-table-columnlabel="操作"><template slot-scope="scope"><el-button @click="deleteItem(scope.row)">删除</el-button></template></el-table-column></el-table><el-dialogtitle="添加服务项目":visible.sync="dialogFlag"width="50%"><el-table:data="addServiceData"ref="table"@selection-change="handleSelectionChange"style="width: 100%"><el-table-columntype="selection"width="55"></el-table-column><el-table-columnprop="date"label="日期"width="180"></el-table-column><el-table-columnprop="name"label="姓名"width="180"></el-table-column><el-table-columnprop="address"label="地址"></el-table-column></el-table><span slot="footer" class="dialog-footer"><el-button @click="dialogFlag = false">取 消</el-button><el-button type="primary" @click="handleConfirm">确 定</el-button></span></el-dialog></div>
</template><script>export default {data () {return {dialogFlag: false,tableData: [], // 外层数据preStoredData: [], // 暂存数据addServiceData: [{ // 里层数据date: '2016-05-02',name: '王小虎',address: '上海市普陀区金沙江路 1518 弄'}, {date: '2016-05-04',name: '王小虎',address: '上海市普陀区金沙江路 1517 弄'}, {date: '2016-05-01',name: '王小虎',address: '上海市普陀区金沙江路 1519 弄'}, {date: '2016-05-03',name: '王小虎',address: '上海市普陀区金沙江路 1516 弄'}]}},methods: {// 打开弹窗handlerService () {this.dialogFlag = true},// 里层-勾选handleSelectionChange (data) {this.preStoredData = data},// 里层-确认handleConfirm () {this.dialogFlag = falsethis.tableData = this.preStoredData},// 外层-删除deleteItem (row) {this.tableData = this.tableData.filter(item => item !== row);this.cancelSelection(row)},// 里层-取消勾选cancelSelection(row) {const table = this.$refs.table;// 使用toggleRowSelection来取消选中table.toggleRowSelection(row, false);},}}
</script><style lang="scss" scoped>
</style>