截取部分代码：
html:
<div id="right">
<h3>购物列表<span>编辑</span></h3>
<div v-for="(item,index) in purchase">
<img v-bind:src="item.img">
<div class="setWidth" v-if="true">{{item.name}}</div>
<div class="setWidth">
<p>￥<em>{{item.price}}</em></p> <br/>
<p>库存件</p>
<p><span v-on:click="increaseGoods(index)">+</span><span >{{count}}</span><span v-on:click="decreGoods(index)">-</span></p>
</div>
</div>
</div>
js:
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methods:{
addItem:function(index){
this.purchase.push(this.lists[index])
//console.log(this.count); //1
//console.log(this.purchase instanceof Array) //true
},
}
