var vue = new Vue({
  el:'#demo',
  data: {
    sum:0,
    show:false
  },
  methods: {
    toggle: function () {
      var _self=this
      _self.sum = parseInt(Math.random()*100 + 1)
      _self.show = true
      console.log(_self.recommend)
      setTimeout(function () {
        _self.show = false
      },3000)
    }
  },
  computed: {
    recommend: function () {
      return '共有' + this.$data.sum + '条推荐'
    }
  },
  compiled: function () {
    /*
    var _self = this
    setInterval(function() {
      _self.sum = parseInt(Math.random()*100 + 1)
    }, 3000)
    */
  }
})