Ruby从剪贴板中取数据

#require "win32/clipboard"   
#require "pp"   
#include Win32   
puts "VERSION: " + Clipboard::VERSION   
pp Clipboard.formats   
pp Clipboard.data(Clipboard::UNICODETEXT)   
pp Clipboard.format_available?(49161)   
pp Clipboard.format_name(999999999)   
pp Clipboard.format_available?(9999999)   
puts "Data was: [" + Clipboard.data + "]"   
Clipboard.set_data("foobar")   
puts "Data is now: [" + Clipboard.data + "]"   
puts "Number of available formats: " 
+ Clipboard.num_formats.to_s   
Clipboard.empty   
puts "Clipboard emptied"