Vue小实例

<div id="demo">
            <a v-on:click="tog" class="list-group-item active">商品总金额：{{total}}</a>
            <div v-if="show">
                <div v-for="food in foods">
                    <a v-on:click="add(food)" v-bind:class="food.style" class="list-group-item">
                        {{food.name}}
                        <span class="label label-default" style="float:right;">${{food.price}}</span>
                    </a>
                </div>
            </div>
        </div>

 window.onload=function(){
        var data={
            show:true,
            total:0,
            foods:[
                {
                name:"苹果",
                price:10,
                statue:false,
                style:"",
                },
                {
                name:"香蕉",
                price:15,
                statue:false,
                style:"",                
                },
                {
                name:"哈密瓜",
                price:26,    
                statue:false,
                style:"",            
                },
                {
                name:"火龙果",
                price:30,
                statue:false,
                style:"",                
                }
            ]
        }
        
        var vm=new Vue({
            el:"#demo",
            data:data,
            methods:{
                tog:function(){
                    this.show=!this.show;    
                },
                add:function(food){
                    if (food.statue){
                        this.total-=food.price;    
                        food.statue=false;
                        food.style="";
                    }else{
                        this.total+=food.price;    
                        food.statue=true;
                        food.style="act";
                    }
                }
            }
        })
        
    }