console 命令行工具 X clear

console

var header = Vue.extend({
  template: '<p>{{message}}--{{a}}</p>',
  data: function() {
    return {
      message: 'hello,jskd'
    }
  },
  props: ['a']
});
new header({
  propsData: {
    a: 2
  }
}).$mount('#app');

<header id="app">
</header>