vue prop属性

Vue.component(‘child‘,{
      props:[‘message‘],
      template:‘<span>{{ message }}</span>‘
});
new Vue({
      el: ‘#proptest‘
})
//HTML
<div id= "proptest">
  <child message="hello!"></child>
 </div>
//show
<div id= "proptest">
  <span>hello</span>
</div>

<div id= "proptest">
      <!-- v-model表单输入绑定 input和textarea标签用-->
      <input v-model="parrentMsg"> 
      <br>
      <div >
      <!--my-message 绑定到父组件属性 -->
        <child :my-message="parrentMsg"></child> 
      </div>
    </div>
    <script type="text/javascript">
      Vue.component(‘child‘,{
            props:[‘myMessage‘],
            template:‘<span>{{ myMessage }}</span>‘
        });
      new Vue({
         el: ‘#proptest‘,
         data:{
           "parrentMsg":"hello"
         }
      })
    </script>