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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                ~~~ <div id="app"> <counter :count="2" ref="one" @change="handleChange"></counter> <counter :count="3" ref="two" @change="handleChange"></counter> <div>{{total}}</div> </div> ~~~ ~~~ var counter ={ props:['count'], data:function(){ return{ number:this.count } }, methods:{ handleClick(){ this.number++ this.$emit('change',1) } }, template:"<div @click='handleClick'>{{number}}</div>" } var vm = new Vue({ el:"#app", components:{ counter }, data:{ total:5 }, methods:{ handleChange(option){ this.total = this.total+option; } } }) ~~~
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