定时器手指接触或者按住屏幕以及屏幕锁定，定时器就停了？
count: function () {
    const _that = this;
    clearInterval(timer);


    timer = setInterval(function () {
      _that.setData({
        time: _that.data.time - 1,
        disabled: true,
      }, () => {
        if (_that.data.time <= 0) {
          clearInterval(timer);
          _that.setData({
            time: 60,
            disabled: false,
          })
        }
      })
    }, 1000)
  }