其实在去年小颖已经写过一篇：Vue.js实现checkbox的全选和反选

小颖今天在跟着慕课网学习vue的过程中，顺便试试如何在table中实现全选和反选，页面的css样式是直接参考慕课网的样式写的，js是小颖自己写哒，欢迎大家吐槽和点赞，嘻嘻

demo的 git 地址：ShoppingCart

页面效果：

具体怎么实现的呢？

使用localstorage来存储页面信息 中已经有写项目是怎么创建的所以小颖在这里就不重复了，其实只是在上篇文章的基础上稍微做了改动：

App.vue文件

<template> <div id="app"> <router-view/> </div></template><script>export default { name: 'app'}</script><style>#app { font-family: 'Avenir', Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; color: #2c3e50;}li,dl,dt,dd,h1,h2,h3,h4,h5,h6,hgroup,p,blockquote,figure,form,fieldset,input,legend,pre,abbr,button { margin: 0; padding: 0;}ul,ol { list-style: none; margin: 0; padding: 0;}*,*::before,*::after { box-sizing: border-box;}div,p,dl,dt,dd { margin: 0; padding: 0;}a { color: inherit; text-decoration: none;}.checkout-title { position: relative; margin-bottom: 41px; text-align: center;}.checkout-title::before { position: absolute; top: 50%; left: 0; content: ""; width: 100%; height: 1px; background: #ccc; z-index: 0;}.checkout-title span { position: relative; padding: 0 1em; background-color: #fff; font-family: "moderat", sans-serif; font-weight: bold; font-size: 20px; color: #605F5F; z-index: 1;}</style>

home.vue文件

<template> <div class="container"> <div class="checkout-title"> <span>购物车</span> </div> <table class="product_table"> <tbody> <template v-for="(list,index) in table_list"> <tr> <td width="7%" min-width="94px" v-if="index===0"> <input type="checkbox" v-model='checked' v-on:click='checkedAll'></td> <td width="7%" v-if="index!==0"> <input type="checkbox" v-model='checkList' :value="list.id"> </td> <td width="43%">{{list.product_inf}}</td> <td width="10%" v-if="index===0">{{list.product_price}}</td> <td width="10%" v-if="index!==0">&yen;{{list.product_price}}</td> <td width="10%">{{list.product_quantity}}</td> <td width="10%">{{list.total_amount}}</td> <td width="20%" v-if="index===0">编辑</td> <td width="20%" v-if="index!==0"> <a href="#" rel="external nofollow" rel="external nofollow" class="update">修改</a> <a href="#" rel="external nofollow" rel="external nofollow" class="delete">删除</a> </td> </tr> </template> </tbody> </table> <div class="price_total_bottom"> <div class="price_total_ms"> <label>合计：{{allProductTotal}}</label> <router-link to="/userAddress">结账</router-link> </div> </div> </div></template><script>import userAddress from './address'export default { components: { userAddress }, data() { return { table_list: [{ 'id': 0, 'product_inf': '商品信息', 'product_price': '商品金额', 'product_quantity': '商品数量', 'total_amount': '总金额' }, { 'id': '1', 'product_inf': '女士银手链', 'product_price': 120, 'product_quantity': 200, 'total_amount': 24000 }, { 'id': '2', 'product_inf': '女士银手镯', 'product_price': 380, 'product_quantity': 200, 'total_amount': 72000 }, { 'id': '3', 'product_inf': '女士银耳环', 'product_price': 100, 'product_quantity': 200, 'total_amount': 20000 }], checked: false, allProductTotal: null, checkList: ['1', '3'] } }, methods: { checkedAll: function() { var _this = this; console.log(_this.checkList); if (_this.checked) { //实现反选 _this.checkList = []; } else { //实现全选 _this.checkList = []; _this.table_list.forEach(function(item, index) { if (index > 0) { _this.checkList.push(item.id); } }); } } }, watch: { //深度 watcher 'checkList': { handler: function(val, oldVal) { if (val.length === this.table_list.length - 1) { this.checked = true; } else { this.checked = false; } }, deep: true } }}</script><!-- Add "scoped" attribute to limit CSS to this component only --><style scoped>.container { padding: 69px 0 54px 0;}table { border-collapse: collapse; border-color: transparent; text-align: center;}.product_table,.product_table tbody { width: 100%}.product_table tr:first-child { background: #ece6e6; color: #e66280; font-size: 20px;}.product_table td { border: 1px solid #f3e8e8; height: 62px; line-height: 62px;}.product_table a.update:link,.product_table a.update:visited,.product_table a.update:hover,.product_table a.update:active { color: #1CE24A;}.product_table a.delete:link,.product_table a.delete:visited,.product_table a.delete:hover,.product_table a.delete:active { color: #ffa700;}.price_total_bottom { font-size: 20px; padding: 20px 10px;}.price_total_ms { text-align: right;}.price_total_bottom .price_total_ms label { margin-right: 100px;}.price_total_bottom .price_total_ms a { cursor: default; text-align: center; display: inline-block; font-size: 20px; color: #fff; font-weight: bold; width: 220px; height: 54px; line-height: 54px; border: 0; background-color: #f71455;}</style>

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