XCode查找FrameWork路径

通过Terminal进入Xcode.app所在目录，可以找到相应的SDK路径，相关 的Framework的头文件也在改目录下。

示例如下：

Frameworks:

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1. $ pwd  
2. /Applications/xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/Frameworks  
3. $ ls  
4. AVFoundation.framework      CoreMIDI.framework      MediaPlayer.framework  
5. Accelerate.framework        CoreMedia.framework     MediaToolbox.framework  
6. Accounts.framework      CoreMotion.framework        MessageUI.framework  
7. AdSupport.framework     CoreServices.framework      MobileCoreServices.framework  
8. AddressBook.framework       CoreTelephony.framework     NewsstandKit.framework  
9. AddressBookUI.framework     CoreText.framework      OpenAL.framework  
10. ApplicationServices.framework   CoreVideo.framework     OpenGLES.framework  
11. AssetsLibrary.framework     DiskArbitration.framework   PassKit.framework  
12. AudioToolbox.framework      EventKit.framework      QuartzCore.framework  
13. AudioUnit.framework     EventKitUI.framework        QuickLook.framework  
14. CFNetwork.framework     ExternalAccessory.framework Security.framework  
15. CoreAudio.framework     Foundation.framework        Social.framework  
16. CoreBluetooth.framework     GLKit.framework         StoreKit.framework  
17. CoreData.framework      GameKit.framework       SystemConfiguration.framework  
18. CoreFoundation.framework    IOKit.framework         Twitter.framework  
19. CoreGraphics.framework      ImageIO.framework       UIKit.framework  
20. CoreImage.framework     Kernel.framework        VideoToolbox.framework  
21. CoreLocation.framework      MapKit.framework        iAd.framework  

头文件：

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1. /Applications/xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk/System/Library/Frameworks/IOKit.framework/Headers