1、效果
点击+-修改数量，金额跟着一起变动
2、index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0"> <title>Title</title> <link rel="stylesheet" href="css/index.css"> </head> <body> <div id="app"> <!--<h2>{{title}}</h2>--> <li v-for="(item,index) in productList"> <div >产品名称：{{item.productName}}</div> <dd v-for="part in item.parts" v-text="part.partsName"></dd> <div>价格：{{item.productPrice+"--------------------"+index}}</div> <div>数量：{{item.productQuentity}}</div> <div>金额：{{item.productPrice*item.productQuentity | formatMoney}}</div> <div>金额：{{item.productPrice*item.productQuentity | money("元")}}</div> <!--<img src="item.productImage" alt="">--> <!--<img src="{{item.productImage}}" alt="">--> <img v-bind:src="item.productImage" alt=""> <a href="javascript:;" v-on:click="changeMoney(item,-1)">-</a> <a href="javascript:;" @click="changeMoney(item,1)">+</a> <input type="text" value="0" disabled v-model="item.productQuentity"> </li> </div> <script src="js/lib/vue.min.js"></script> <script src="js/lib/vue-resource.min.js"></script> <script src="js/cart.js"></script> </body> </html>
3、cart.js
/** * Created by kk on 2017/4/16. */ new Vue({ el:"#app", data:{ // title:"hello vue" totalMoney:0, productList:[] }, filters:{ formatMoney:function (value) { return "￥"+value.toFixed(2) } }, mounted:function () { //类似于jquery中的ready方法 this.$nextTick(function () { this.cartView(); }) }, methods:{ cartView:function () { // this.title="Vue hello" //var _this=this; // this.$http.get("data/cart.json",{"id":123}).then(function (res) { // _this.productList=res.body.result. productList; // _this.totalMoney=res.body.result.totalMoney; // }); // ES6语法 let _this=this; this.$http.get("data/cart.json",{"id":123}).then(res=> { this.productList=res.body.result. productList; this.totalMoney=res.body.result.totalMoney; }); }, changeMoney:function (product,way) { if(way>0) { product.productQuentity++; } else{ product.productQuentity--; if(product.productQuentity<1){ product.productQuentity=1; } } } } }); Vue.filter("money",function (value,type) { return "￥"+value.toFixed(2)+type; });