I'm a dark horse-----iOS Development notes

1, iOS system is running on the Apple mobile device operating system, is not open source!

2. Install Xcode under OS system to develop iOS. OS is Apple PC operating system, 3, install Xcode need to download in the Apple Store, need to register Apple account. can use QQ mailbox convenient memory. Note: (Please do not forget the account!) Otherwise very troublesome) 4, the development of Apple System application software needs to have good hardware equipment, MAC Pro, IPhone5 above the device. 5, OS system is based on the development of UNIX operating system. The underlying language is the C language. 6, use Xcode to develop software can choose to use their favorite language, C, C + +, OC, Swift. Four options are available. Where OC is used more, Swift is a new Apple development language released in May 2014. 7, after our main OC as a programming language, the latter will expand the learning of swift language, need to learn from the bottom of the C language. 8, C language is a high-level process-oriented language, OC is a disguised object programming language, Swift language similar to scripting language, easy to learn, but powerful, not the scripting language can be compared. With this knowledge you can enter the learning of iOS! Shortcut key files in Xcode:
CMD + N: New
CMD + O: Open
CMD + S: Save
CMD + SHIFT + N: New Item
CMD + SHIFT + S: Save As
CMD + SHIFT + W: Close file
CMD + W: Close window Edit:
CMD + [Left Indent
CMD + OPT + left Folding
CMD + OPT + right cancel collapse
CMD + OPT + TOP collapse all functions
CMD + OPT + BOTTOM Cancel all folding functions
CMD +/Comment or cancel comment
CMD +. Parameter hints
ESC Auto Prompt list debug: CMD + \ Set or Cancel breakpoint
CMD + OPT + \ Allow or disable current breakpoint
CMD + OPT + B View all breakpoints
CMD + R Run (no breakpoint is triggered)
CMD + Y Compile and debug (trigger breakpoint)
CMD + B Compilation
CMD + SHIFT + K cleanup

I'm a dark horse-----iOS Development notes