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                //  オプションの構成
var app = new Vue({
  // elはアプリケーションを紐づける要素
  el: '#app',
  // dataはアプリケーションで使用するデータです
  data: {
    message: 'Vue.js'
  // computedはdataと同じように扱うことができる関数によって算出されたデータです
  computed: {
    computedMessage: function(){
      return this.message + '!'
  // ライフサイクルとはVue.jsのおはようからおやすみまでの一定のサイクル
  // createdは特定のタイミングで呼び出す9こあるライフサイクルフックメソッドのうちの一つ
  created: function(){
  // イベントハンドラなどのメソッド
  methods: {
    myMethod: function(){