swift笔记三 使用xcode

建一个xcode工程。。OS X > Application > Command Line Tool因为我们只是想玩玩swift语言特性不做UI.

product name; example
org name: cyper 
org id: me.cyper
bundle id: me.cyper.example

保存在桌面.  
example > example.xcodeproj
example > example/main.swift
 

选择products>example，右边identity and type, type选择Unix-Executable可以看到生成的可执行文件的全路径
/Users/cyper/Library/Developer/Xcode/DerivedData/example-ajcwintjwwixdreqjjijwrzqriom/Build/Products/Debug/example

这个hello world文件大约5M

➜  Debug  $ pwd
/Users/cyper/Library/Developer/Xcode/DerivedData/example-ajcwintjwwixdreqjjijwrzqriom/Build/Products/Debug
➜  Debug  $ ll
total 10904
-rwxr-xr-x  1 cyper  staff   5.3M Oct 10 20:03 example
drwxr-xr-x  4 cyper  staff   136B Oct 10 20:00 example.swiftmodule/
➜  Debug  $ ./example
Hello, World!
➜  Debug  $