// 代码

1   wx.getSystemInfo({  2     success(res) {  3       console.log(res)  4     }  5   })  6   console.log(wx.canIUse("getSetting.success"), wx.canIUse("authorize.success"))  7   wx.getSetting({  8     success(res) {  9       if (!res.authSetting['scope.writePhotosAlbum']) {  10         wx.authorize({  11           scope: 'scope.writePhotosAlbum',  12          success() {  13             console.log('success')  14           }  15         })  16       }  17     }  18   })

// log信息

// 代码行1

1. SDKVersion:"1.7.1"

2. batteryLevel:100

3. brand:"devtools"

4. errMsg:"getSystemInfo:ok"

5. fontSizeSetting:16

6. language:"zh_CN"

7. model:"iPhone 6"

8. pixelRatio:2

9. platform:"devtools"

10. screenHeight:667

11. screenWidth:375

12. system:"iOS 10.0.1"

13. version:"6.6.3"

14. windowHeight:603

15. windowWidth:375

true false //代码行6

success //代码行13

canIUse是false，但是可以授权成功