console 命令行工具 X clear

console

let vm = new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue.js!'
  },
  methods:{
    reverseMessage : function(){
    	this.message = this.message.split('').reverse().join('')
    }
  }
})

<div id="app">
  <p>{{ message }}</p>
  <button v-on:click="reverseMessage">reverseMessage</button>
</div>