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Vue.js实现价格计算器功能

Dragonir 人气:0

本文实例为大家分享了Vue.js实现价格计算器功能的具体代码,供大家参考,具体内容如下

实现效果:

实现代码及注释:

<!DOCTYPE html>
<html>
<head>
 <title>价格计算器</title>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <style type="text/css">
 
 /* 隐藏未编译的数据绑定,直到Vue实例成功加载 */
 [v-cloak]{
 display: none;
 }
 *{
 padding: 0;
 margin: 0;
 }
 body{
 font: 15px/1.3 "微软雅黑";
 color: #545b64;
 text-align: center;
 }
 a, a:visited{
 outline: none;
 color: #389dc1;
 }
 a:hover{
 text-decoration: none;
 }
 section, footer, header, aside, nav{
 display: block;
 }
 
 /*-------------------------
 The order form
 --------------------------*/
 
 form{
 background-color: #d5d5d5;
 border-radius: 10px;
 box-shadow: 0 1px 1px #ccc;
 width: 400px;
 padding: 35px 45px;
 margin: 50px auto;
 box-shadow: 1px 0px 20px #f5f5f5;
 }
 
 form h1{
 color:#fff;
 font-size: 55px;
 font-family: "微软雅黑"
 font-weight: normal;
 line-height:1;
 text-shadow:2px 3px 0 rgba(0,0,0,0.1);
 font-weight: normal;
 }
 
 form ul{
 list-style:none;
 color:#fff;
 font-size:20px;
 font-weight:bold;
 text-align: left;
 margin:20px 0 15px;
 }
 
 form ul li{
 padding:15px 30px;
 background-color:#03c03c;
 margin-bottom:10px;
 box-shadow:0 1px 1px rgba(0,0,0,0.1);
 cursor:pointer;
 }
 
 form ul li span{
 float:right;
 }
 
 form ul li.active{
 background-color: orange;
 }
 
 div.total{
 border-top:1px solid rgba(255,255,255,0.5);
 padding:15px 30px;
 font-size:20px;
 font-weight:bold;
 text-align: left;
 color:#fff;
 text-shadow: 2px 2px 2px rgba(0,0,0,0.1);
 }
 
 div.total span{
 float:right;
 }
 </style>
 
</head>
<body>
 
<!-- v-cloak隐藏所有没有编译过的数据绑定,直到vue实例准备好 -->
 
<form id="main" v-cloak>
 <h1>价格计算器</h1>
 <ul>
 
 <!-- 循环这个服务数组,分配一个点击句柄,并且设置或移除active class -->
 <li v-for="service in services" v-on:click="toggleActive(service)" v-bind:class="{'active': service.active}">
 
 <!-- 显示这个数组中每个实体的名称和价格格式化, Vue有一个内置的货币筛选器用于对价格进行 -->
 
 {{service.name}} <span>{{service.price | currency}}</span>
 
 </li>
 </ul>
 
 <div class="total">
 
 <!-- 计算所有选定商品的总价格,并且格式化为货币显示方式 -->
 
 总价: <span>{{total() | currency}}</span>
 </div>
</form>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.0.5/vue.min.js"></script>
<script type="text/javascript">
 
 // 定义一个常规过滤器currency
 Vue.filter('currency', function(value){
 return '¥' + value.toFixed(2);
 });
 
 var demo = new Vue({
 el: '#main',
 data: {
 // 定义model属性,view将会循环
 // 通过services数组产生一个li
 // 定义services每一项的元素
 
 services: [
 {
  name: "网站开发",
  price: 300,
  active: true
 },
 {
  name: "设计",
  price: 400,
  active: false
 },
 {
  name: "一体化整合",
  price: 250,
  active: false
 },
 {
  name: "操作培训",
  price: 220,
  active: false
 }
 ]
 },
 
 methods: {
 toggleActive: function(s){
 s.active = !s.active;
 },
 total: function(){
 var total = 0;
 this.services.forEach(function(s){
  if(s.active){
  total+=s.price;
  }
 });
 return total;
 }
 }
 });
</script>
 
</body>
</html>

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