onShow: function() {
    this.setData({
      today_word: wx.getStorageSync('today_word'),
      task_detail: wx.getStorageSync("task_detail"),
    })


    if (this.data.today_word.length < this.data.day_num) {
      this.setData({
        goto_choice: true
      })
    } else {
      this.setData({
        goto_choice: false
      })
      
      //加载第一个单词
      var today_task = wx.getStorageSync('task')
      var length = today_task.length
      if (length > 0) {
        var n = today_task[0];
        this.setData({
          showNot: false
        })
        this.setData({
          counter: n
        })
        this.search(this.data.today_word[n].word)
      } else {
        this.complete()
      }


    }


  },