require

require

ri

 --------------------------------------------------------- Kernel#require
      require(string)    => true or false
 ------------------------------------------------------------------------
      Ruby tries to load the library named _string_, returning  true  if
      successful. If the filename does not resolve to an absolute path,
      it will be searched for in the directories listed in  $: . If the
      file has the extension ``.rb'', it is loaded as a source file
		

* はてなダイアリーキーワード:require