这种写在app,js里的函数为什么读出来的bottle是undefined 不用async就又可以读出来

 async publish(bottle) {
        // 处理发布逻辑，上传数据至服务器
        console.log(bottle)
        var images = bottle.images
        var data = await this.uploadImages(images)
        var bottle = {
            id:bottle.id,
            content:bottle.content,
            creator:wx.getStorageSync('userInfo').id,
            images:JSON.stringify(data)
        }
        console.log(bottle)
        wx.request({
          url: this.globalData.url + '/bottles',
          method: 'POST',
          data: bottle,
          success: (res) => {
              if (res.data) {
                  wx.showToast({
                      title: '保存成功',
                      icon: 'success',
                      duration: 2000
                  });
              
              } else {
                  wx.showToast({
                      title: '保存失败',
                      icon: 'none',
                      duration: 2000
                  });
              }
          },
          fail: () => {
              wx.showToast({
                  title: '请求失败',
                  icon: 'none',
                  duration: 2000
              });
          }
      });   
    },