Vue.component('my-component',{ 
       props:['message'], 
      template:'<div class="tem1">{{message}}</div>' 
    }); 
<my-component message="hello"></my-component>

 <div id="app"> 
    <my-component v-bind:message='message'></my-component> 
  </div> 
  </body> 
  <script> 
    Vue.component('my-component',{ 
       props:['message'], 
      template:'<div v-on:click="zan">{{comdata}}<div>{{message}}</div></div>', 
      data:function(){return {comdata:this.message}}, 
      methods:{ 
        zan:function(){ 
          this.comdata=this.message+'vue'; 
      this.message=this.message+'vue'   
        } 
      } 
    }); 
 
    var app=new Vue({ 
      el:'#app', 
      data:{message:'hello!!!'} 
    }) 
 </script> 

props:{propName: 
  { 
    typpe:[Number,String,Boolean,Function,Array,Object]， 
    default:function(){ 
      return {name:'weng'} 
    }, 
    validator:function(value){ 
      return value.length>3 
    } 
  } 
   
}