使用vue制作一个购物车功能，只是一个测试版本，注重的是功能实现，界面并没有做好，数据也是模拟数据等

不说那么多，直接上代码

<template> <div id="app"> 全选<input type="checkbox" v-model="checkall" @change="check_all()"> <div v-for="(item,index) in mylist" :key="index"> <span>{{item.oname}}</span><input type="checkbox" v-model="item.this_all" @change="check_list(index)"> <p v-for="(goods,nindex) in item.newlist" :key="nindex"> <input type="checkbox" v-model="goods.check_one" @change="click_input(index,nindex)">{{goods.newname}}--{{goods.price}}元 </p> </div> <p>总价：{{allprice}}</p> <button @click="btn()">提交订单</button> </div></template> <script>export default { name: 'App', data(){ return{ mylist:[ {oname:"第一个",this_all:true,newlist:[{newname:"篮球",check_one:true,price:600},{newname:"足球",check_one:true,price:200},{newname:"滑雪",check_one:true,price:150}]}, {oname:"第二个",this_all:true,newlist:[{newname:"西瓜",check_one:true,price:35},{newname:"桃子",check_one:true,price:20}]}, {oname:"第三个",this_all:true,newlist:[{newname:"英雄联盟",check_one:true,price:200}]}, ], checkall:true, allprice:0, cpmylist:[] } }, mounted:function(){ this.money(); }, methods: { money:function(){ var that = this; this.allprice=0; that.mylist.forEach(item1 =>{ item1.newlist.forEach(item2 =>{ if(item2.check_one==true){ that.allprice+=item2.price; } }) }) }, check_all:function(){ var that = this; that.mylist.forEach(item1 => { item1.this_all=that.checkall item1.newlist.forEach(item2 => { item2.check_one=that.checkall }) }); that.money(); }, abc:function(){ var that = this; var aaa = that.mylist.filter(item2 =>{ return item2.this_all==true }) aaa.length==that.mylist.length ? that.checkall = true : that.checkall = false that.money(); }, check_list:function(i){ var that = this; that.mylist[i].newlist.forEach(item1 =>{ item1.check_one=that.mylist[i].this_all }) that.abc(); }, click_input:function(i,j){ var that = this; var checklist = that.mylist[i].newlist.filter(item1 =>{ return item1.check_one==true }) checklist.length==that.mylist[i].newlist.length ? that.mylist[i].this_all = true : that.mylist[i].this_all = false that.abc(); }, btn:function(){ var that = this; that.cpmylist=JSON.parse(JSON.stringify(that.mylist)); that.cpmylist.filter(item1 =>{ item1.newlist = item1.newlist.filter(item2 =>{ return item2.check_one==true }) }) that.cpmylist=that.cpmylist.filter(item3 =>{ return item3.newlist.length!=0 }) if(that.cpmylist.length==0){ alert("请选择商品哦！") }else{ console.log("★★★您购买的商品是："); that.cpmylist.forEach(item4 =>{ console.log("----------"+item4.oname+"店铺----------"); item4.newlist.forEach(item5 =>{ console.log("——>："+item5.newname); }) }) } } }, }</script> <style>#app { font-family: 'Avenir', Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-align: center; color: #2c3e50; margin-top: 60px;}</style>

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