穿鞋上路
Shoes是Ruby的一个简单的桌面程序库下载Shoes，将shoes.exe加入path
看看Hello World例子hello.rb:
Shoes.app do button "Press Me" doalert "Hello Shoes!" endend
运行shoes hello.rb即可
再看看自带的计算器的例子:
class Calcdef initialize @number = 0 @previous = nil @op = nilenddef to_s @number.to_send (0..9).each do |n| define_method "press_#{n}" do @number = @number.to_i * 10 + n endenddef press_clear @number = 0end{'add' => '+', 'sub' => '-', 'times' => '*', 'div' => '/'}.each do |meth, op| define_method "press_#{meth}" do if @op press_equals end @op = op @previous, @number = @number, nil endenddef press_equals @number = @previous.send(@op, @number.to_i) @op = nilendendnumber_field = nilnumber = Calc.newShoes.app :height => 250, :width => 200, :resizable => false dobackground "#EEC".."#996", :radius => 5, :top => 2, :left => 2, :width => -4, :height => -4stack :margin => 4 do stack :margin => 8 do number_field = text "<b>#{number}</b>" end flow :width => 218, :margin => 4 do %w(7 8 9 / 4 5 6 * 1 2 3 - 0 Clr = +).each do |btn| button btn, :width => 46, :height => 46 do method = case btn when //: 'press_'+btn when 'Clr': 'press_clear' when '=': 'press_equals' when '+': 'press_add' when '-': 'press_sub' when '*': 'press_times' when '/': 'press_div' end number.send(method) number_field.replace "<b>#{number} </b>" end end endendend
用Block、Closure的方式来开发桌面程序，代码非常的清晰简洁
Shoes目前支持OS X、XP、Vista、Debian、Ubuntu，跨平台做的也非常不错
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