问题
When i update my app I'd like the user to still be able to access their old files. What will the contents of the Documents directory be after updating?
Any tricks or tips shared would be most appreciated on this process.
回答1:
The content inside ~/Documents will be same as the old one. See the iPhone Application Programming Guide on what folders will be kept.
来源：https://stackoverflow.com/questions/2778597/iphone-app-update-and-documents-directory