元件作用域（非全域性）

演示

HTML

<script type="x-template" id="form-template">
    <label>{{inputLabel}} :</label>
  <input type="text" v-model="name" />
</script>

<div id="app">
  <h2>{{appName}}</h2>
  <form-component title="This is a form" v-bind:name="userName"></form-component>
</div>

JS

// Describe the form component
// Note: props is an array of attribute your component can take in entry.
// Note: With props you can pass static data('title') or dynamic data('userName').
// Note: When modifying 'name' property, you won't modify the parent variable, it is only descendent.
// Note: On a component, 'data' has to be a function that returns the data.
var formComponent = {
  template: '#form-template',
  props: ['title', 'name'],
  data: function() {
    return {
      inputLabel: 'Name'
    }
  }
};

// This vue has a private component, it is only available on its scope.
// Note: It would work the same if the vue was a component.
// Note: You can build a tree of components, but you have to start the root with a 'new Vue()'.
var vue = new Vue({
  el: '#app',
  data: {
    appName: 'Component Demo',
    userName: 'John Doe'
  },
  components: {
    'form-component': formComponent
  }
});