配置
Mac OS X 10.7.5
Intel Core i5 (64bit)
Xcode IDE 4.6.1
Apple LLVM Compiler (LLVM: Low Level Virtual Machine, completely support C, Objective-C, C++)
LLDB Debugger
Base SDK: OS X SDKs (OS X 10.7 , OS X 10.8)
iOS SDKs (iOS 6.1)
Valid Architectures: i386 x86_64
OS X Deployment Target: OS X 10.7
iOS Simulator
http://developer.apple.com