if (res.statusCode === 200) {
          wx.saveImageToPhotosAlbum({
            title:"",
            filePath: res.tempFilePath,
            success(res) {
              ui.toast('保存圖片成功')
              that.setData({
                bol:true
              })
              // 保存圖片成功之后
              // 調用小程序的掃一掃功能
              // wx.scanCode({
              //   success(res) {
              //     console.log(res.result)
              //   }
              // })
            },
            fail(res) {
              console.log('fail')
              console.log(res)
              ui.toast('保存圖片失敗')



              wx.getSetting({
                success (res) {
                  console.log(res.authSetting)
                  res.authSetting = {
                    "scope.userInfo": true,
                    "scope.userLocation": true
                  }
                }
              })
            }
          })
        }
      }
    })