xcode代码格式化快捷键

• Format entire code (entire class/controller)
  Select the entire code and press control+I on mac to format your code.

• Format particular block of code
  Select the code and press:
  ⌘+]: for right move (indent)
  ⌘+[: for left move (un-indent)

ref:https://stackoverflow.com/questions/829954/how-can-i-indent-multiple-lines-in-xcode