SOURCE

console 命令行工具 X clear

                    
>
console
var data={count:0}
Vue.component('my-component',{
  template:'<button v-on:click="count+=1">{{count}}</button>',
  data:function(){
    return data
  }
})
Vue.component('todo-item',{
  template:'<button v-on:click="count+=1">{{count}}</button>',
  data:function(){
    return{
      count:0
    }
  }
})
new Vue({
  el:'#app'
})
<div id="app">
  <my-component></my-component>
  <my-component></my-component>
  <my-component></my-component><br>
  <todo-item></todo-item>
  <todo-item></todo-item>
  <todo-item></todo-item>
  
</div>