ruby中获取当前的文件名和目录_Ruby_编程开发_程序员俱乐部

## 获取当前的文件名称
puts "__FILE__ == #{__FILE__}"
Result: __FILE__ == test01/motorcycletest.rb	

## 获取当前文件的目录名称
puts "File.dirname(__FILE__) == #{File.dirname(__FILE__)}"
Result: File.dirname(__FILE__) == test01

## 获取当前文件的完整名称
当要获取完整的路径时需要require 'pathname',代码如下：
require ‘pathname’
puts "Pathname.new(__FILE__).realpath == #{Pathname.new(__FILE__).realpath}"
Result: Pathname.new(__FILE__).realpath == E:/workspace_ruby/test/test01/motorcycletest.rb

## 获取当前文件的完整目录
require ‘pathname’
puts "Pathname.new(File.dirname(__FILE__)).realpath == #{Pathname.new(File.dirname(__FILE__)).realpath}"
Result: Pathname.new(File.dirname(__FILE__)).realpath == E:/workspace_ruby/test/test01

## 输出当前引用的路径：
	puts "$: == #{$:}"
	$: == ["E:/workspace_ruby/.metadata/.plugins/org.rubypeople.rdt.launching/ruby/flush", "d:/Ruby192/lib/ruby/site_ruby/1.9.1", "d:/Ruby192/lib/ruby/site_ruby/1.9.1/i386-msvcrt", "d:/Ruby192/lib/ruby/site_ruby", "d:/Ruby192/lib/ruby/vendor_ruby/1.9.1", "d:/Ruby192/lib/ruby/vendor_ruby/1.9.1/i386-msvcrt", "d:/Ruby192/lib/ruby/vendor_ruby", "d:/Ruby192/lib/ruby/1.9.1", "d:/Ruby192/lib/ruby/1.9.1/i386-mingw32"]