摘要：
https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html CFBundleURLTypes CF 阅读全文
摘要：
两个维度： 1）是否给用户使用； 2）是否持久存储。 During installation of a new app, the installer creates a number of container directories for the app inside the sandbox di 阅读全文