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Vue.js 订单表单</title>
    <script src="https://cdn.staticfile.net/vue/2.4.2/vue.min.js"></script>
    <style>
    /*  隐藏未编译的变量 */

[v-cloak] {
      display: none;
    }

*{
    	margin:0;
    	padding:0;
    }

body{
    	font:15px/1.3 'Open Sans', sans-serif;
    	color: #5e5b64;
    	text-align:center;
    }

a, a:visited {
    	outline:none;
    	color:#389dc1;
    }

a:hover{
    	text-decoration:none;
    }

section, footer, header, aside, nav{
    	display: block;
    }

/*-------------------------
    	订单表单
    --------------------------*/

form{
    	background-color: #61a1bc;
    	border-radius: 2px;
    	box-shadow: 0 1px 1px #ccc;
    	width: 400px;
    	padding: 35px 60px;
    	margin: 50px auto;
    }

form h1{
    	color:#fff;
    	font-size:64px;
    	font-family:'Cookie', cursive;
    	font-weight: normal;
    	line-height:1;
    	text-shadow:0 3px 0 rgba(0,0,0,0.1);
    }

form ul{
    	list-style:none;
    	color:#fff;
    	font-size:20px;
    	font-weight:bold;
    	text-align: left;
    	margin:20px 0 15px;
    }

form ul li{
    	padding:20px 30px;
    	background-color:#e35885;
    	margin-bottom:8px;
    	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:#8ec16d;
    }

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;
    }

div.total span{
    	float:right;
    }
    </style>

<h1>Services</h1>

<ul>

{{service.name}} <span>{{service.price | currency}}</span>

</li>
	</ul>

Total: <span>{{total() | currency}}</span>
        
	</div>

</form>
<script>

// 自定义过滤器 "currency". 
Vue.filter('currency', function (value) {
    return '$' + value.toFixed(2);
});

var demo = new Vue({
    el: '#main',
    data: {
    	// 定义模型属性 the model properties. The view will loop
        // 视图将循环输出数组的数据
        services: [
        	{
        		name: 'Web Development',
        		price: 300,
        		active:true
        	},{
        		name: 'Design',
        		price: 400,
        		active:false
        	},{
        		name: 'Integration',
        		price: 250,
        		active:false
        	},{
        		name: 'Training',
        		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>