本文实例为大家分享了Vue组件模拟实现购物车的具体代码，供大家参考，具体内容如下
代码：
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<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="./lib/vue-2.4.0.js"></script> <style> #app{ width:600px; } #myTable{ width:500px; border-collapse:collapse; } td, th{ text-align: center; font-size:20px; border:2px solid black; } td{ height: 40px; } input{ width: 30px; text-align: center } </style></head><body> <div id="app"> <my-cart></my-cart> </div> <script> var MyCommmodity = { props: ["list"], template:` <div> <button @click="baicai">白菜</button> <button @click="qingcai">青菜</button> <button @click="luobo">萝卜</button> </div> `, methods: { baicai: function(){ var cai = {}; cai.id = 4; cai.name = "白菜" cai.price = 3; cai.num = 1; this.list.push(cai) }, qingcai: function(){ var cai = {}; cai.id = 5; cai.name = "青菜" cai.price = 6; cai.num = 1; this.list.push(cai) }, luobo: function(){ var cai = {}; cai.id = 6; cai.name = "萝卜" cai.price = 8; cai.num = 1; this.list.push(cai) } } } var MyTable = { props: ["list", "flag"], template:` <table id="myTable"> <tr> <th>编号</th> <th>名称</th> <th>单价</th> <th>数量</th> <th>操作</th> </tr> <tr :key="item.id" v-for="item in list"> <td>{{item.id}}</td> <td>{{item.name}}</td> <td>{{item.price}}</td> <td> <button :disabled="flag" @click="sub(item.id)">-</button> <input type="text" :value="item.num" @blur="changeNum(item.id,$event)"> <button @click="add(item.id)">+</button> </td> <td> <button @click="del(item.id)">删除</button> </td> </tr> </table> `, methods: { changeNum: function(id, event){ this.$emit("change-num",{ id: id, type: "change", num: event.target.value }); }, sub: function(id){ this.$emit("change-num",{ id: id, type: "sub" }) }, add: function(id){ this.$emit("change-num",{ id: id, type: "add" }) }, del: function(id){ // alert(id); this.$emit("del-cart",id) } } } var MyPrice = { props: ["list"], template:` <div> <span>结算：</span> <span>{{total}}</span> </div> `, computed: { total: function(){ var t = 0; this.list.forEach(item => { t += item.price * item.num; }); return t; } } } Vue.component('my-cart', { data () { return { flag:false, list:[{ id: 1, name: "猪", price: "10", num:1, }, { id: 2, name: "牛", price: "11", num:1, }, { id: 3, name: "鸡", price: "13", num:1, }] } }, template:` <div> <my-commmodity :list="list"></my-commmodity> <my-table :list="list" :flag="flag" @change-num="changeNum($event)" @del-cart="delCart($event)"></my-table> <my-price :list="list"></my-price> </div> `, components:{ 'my-table':MyTable, 'my-price':MyPrice, 'my-commmodity':MyCommmodity, }, methods:{ changeNum: function(val){ if(val.type ==="change"){ this.list.some(item=>{ if(item.id == val.id){ item.num = val.num; return true; } }); }else if(val.type ==="sub"){ this.list.some(item=>{ if(item.id == val.id && item.num >0){ item.num -= 1; return true; } }); }else if(val.type ==="add"){ this.list.some(item=>{ if(item.id == val.id){ item.num += 1; return true; } }); } }, delCart: function(id){ var index = this.list.findIndex(item=>{ return item.id == id; }) this.list.splice(index,1) } } }) var vm = new Vue({ el: '#app', data:{ } }) </script></body></html> |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/yueqin0512/article/details/109863842
