（7）打鸡儿教你Vue.js

<div id="app">
  {{ message.split('').reverse().join('') }}
</div>

<div id="app">
  <p>{{ message }}</p>
  <p>{{ reversedMessage }}</p>
</div>
 
<script>
var vm = new Vue({
  el: '#app',
  data: {
    message: 'dashu!'
  },
  computed: {
    reversedMessage: function () {
      return this.message.split('').reverse().join('')
    }
  }
})
</script>

methods: {
  reversedMessage2: function () {
    return this.message.split('').reverse().join('')
  }
}

var vm = new Vue({
  el: '#app',
  data: {
    name: 'Google',
    url: 'http://www.google.com'
  },
  computed: {
    site: {
      // getter
      get: function () {
        return this.name + ' ' + this.url
      },
      // setter
      set: function (newValue) {
        var names = newValue.split(' ')
        this.name = names[0]
        this.url = names[names.length - 1]
      }
    }
  }
})