vue实现的仿淘宝购物车功能详解
这篇文章主要介绍了vue实现的仿淘宝购物车功能,结合完整实例形式较为详细的分析了vue.js仿淘宝购物车功能的具体样式、功能相关实现技巧与操作注意事项,需要的朋友可以参考下
本文实例讲述了vue实现的仿淘宝购物车功能。分享给大家供大家参考,具体如下:
下面是一张众所周知的淘宝购物车页面,今天要讲解的案例就是用vue.js做一个类似的页面
首先简单介绍一下可能会用到的一些vue.js的用法:
v-bind,绑定属性;例如v-bind:class="{'class1':flag}",这是常用的绑定样式的方法,如果flag为true则 "image",image就是图像的路径;
v-if="flag"与v-show="flag",如果flag为true,则绑定的为“可见”,不同的是v-show是一开始就渲染在DOM中的,改变的则是它的display而已,而v-if为false则是从HTML代码中移除;
v-on,样式绑定v-on:click="dosomething()"="dosomething()",点击触发dosomething函数;
v-for循环,v-for="item in items",items为数组,item为items数组的值而不是索引;
要注意的是当this作用域的改变:当this作用域改变是我们设置var self = this,在之后的使用中用self代替;
下面是HTML代码:
html head title 购物车 /title meta http-equiv="Content-Type" content="text/html; charset=UTF-8" link rel="stylesheet" type="text/css" href="shop.css" rel="external nofollow" /head body div id="app" div span 商品 /span span 单价 /span span 数量 /span span 总价 /span /div div v-for="item in goods" div v-show="item.selected" span v-bind:class="{'checked':item.checked}" @click="check(item)" /span div img v-bind:src="item.image" v-bind:alt="item.alt" / span {{item.name}} /span /div span {{item.price}}元 /span div span v-on:click="changeNum(item,-1)" a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" - /a /span input v-model="item.number" disabled/ span v-on:click="changeNum(item,1)" a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" + /a /span /div div ¥{{item.price * item.number}}元 /div span @click="seen=true" /span /div /div !--footer-- div id="footer" span v-bind:class="{'checked':checkAllFlag}" /span a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="checkAll(true)" 全选 /a a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="checkAll(false)" 取消全选 /a span Total:¥{{totalAll}}元 /span span button 结 nbsp;算 /button /span /div div id="info" v-show="seen" p 是否删除该商品 /p div @click="seen=false" times /div button @click="" yes /button button @click="seen=false" no /button /div div v-show="seen" /div /div /body script src="./src/vue.min.js" /script script src="./src/vue-resource.min.js" /script script src="shop.js" /script /html
下面的是js的代码:
var vm = new Vue({ el:'#app', data:{ total: 0, totalAll: 0, goods: [],//商品为数组 checkAllFlag: false, seen: false, delFlag: true mounted: function () { this.goodlist(); methods:{ //改变商品数量 changeNum:function (item,flag) { if (flag 0) { item.number++; }else{ item.number--; if(item.number 1){ item.number = 1; this.totalMoney(); //是否选中 check:function (item) { if(typeof item.checked == 'undefined'){ this.$set(item,"checked",true); //局部为item添加“checked”,值为true }else{ item.checked = !item.checked; this.totalMoney(); //通过$http.get方法ajax地交互获取商品信息,一定要引入vue-resource组件 goodlist:function () { var self = this; this.$http.get("shop.json").then(function (res) { self.goods = res.data.result.goods; },function () { console.log("failed"); //是否全选 checkAll:function (flag) { this.checkAllFlag = flag; var self = this; this.goods.forEach(function(value,index){ if(typeof value.checked == 'undefined'){ self.$set(value,"checked",self.checkAllFlag); }else{ value.checked = self.checkAllFlag; this.totalMoney(); //结算选中商品的价格 totalMoney:function () { //初始化总价 this.totalAll = 0; var self =this; //通过foreach循环判断是否被选中 this.goods.forEach(function(value,index){ if(value.checked){ self.totalAll += value.price * value.number;
下面是CSS代码:
*{padding: 0;margin: 0;} a{text-decoration: none;color: black;} #app{width: 500px;height: 600px;border: 1px solid;position: absolute;margin-top:20px;margin-left:50px;} .header{width: 500px;height: 30px;line-height: 30px;background-color: darkmagenta;} .header span{display: inline-block;width: 50px;height: 30px;} .show{width: 500px;height: 85px;margin-top: 5px;} #footer{position: absolute;bottom: 0;width: 500px;height: 50px;background-color: #c7c7c9;} .output{width: 40px;height: 20px;} .image{width: 60px;height: 80px;float:left;} .choice{display: inline-block;width: 15px;height: 15px;border-radius: 15px;border: 1px solid;float: left;margin-top: 30px;margin-left: 20px;} .checked{background-color: darkorange;} .icon{background-image: url(del.png);display: inline-block;width: 30px;height: 30px;margin-left: 50px;margin-top: 20px;} .text{display:inline-block;width:50px;height:20px;line-height:20px;font:12px;margin-top:20px;margin-left:5px;float:left;} .count{width:100px;height:40px;background-color:red;line-height:40px;font-size:16px;margin-left:40px;margin-top:5px;} #footer a{display:inline-block;margin-left:5px;height:22px;} #info{width:250px;height:100px;position:absolute;border:1px solid;margin-top:-250px;margin-left:120px;background-color:#c7c7c9;text-align:center;z-index:999;} .get{width:80px;height:30px;font:17px;margin-top:10px;} .shadow{width:100%;height:100%;background-color:black;opacity:0.8;margin-top:-480px;z-index:1;} .close{position:absolute;right:2px;top:-5px;cursor:pointer;}
下面是json代码:
"status":1, "result":{ "total":50, "goods":[ "name":"香烟", "price":15, "number":1, "selected": true, "image": "./img/xiangyan.jpg", "alt": "香烟" "name": "啤酒", "price": 12, "number": 1, "selected": true, "image": "./img/pjiu.jpg", "alt": "啤酒" "name": "打火机", "price": 2, "number": 1, "selected": true, "image": "./img/fire.jpg", "alt": "打火机" "name": "鸡腿", "price": 5, "number": 1, "selected": true, "image": "./img/chick.jpg", "alt": "鸡腿" "name": "垃圾袋", "price": 8, "number": 1, "selected": true, "image": "./img/bush.jpg", "alt": "垃圾袋" "message":""
实现的结果如下图:
代码下载:
或者点击此处。
希望本文所述对大家vue.js程序设计有所帮助。