《大话设计模式》ruby版代码：代理模式

# -*- encoding: utf-8 -*-

#追求者类
class Pursuit
    attr_accessor :mm
    
    def initialize(mm)
        @mm = mm
    end
    
    def give_dolls
        puts "#{mm.name} 送你洋娃娃"
    end
    
    def give_flowers
        puts "#{mm.name} 送你鲜花"
    end
    
    def give_chocolate
        puts "#{mm.name} 送你巧克力"
    end

end

#被追求者类
class Girl
    attr_accessor :name
    
    def initialize(name)
        @name = name
    end
end

xiao_hong = Girl.new(‘小红‘)

xiao_ming = Pursuit.new(xiao_hong)
xiao_ming.give_dolls
xiao_ming.give_flowers
xiao_ming.give_chocolate

# -*- encoding: utf-8 -*-

#代理类
class Proxy
    attr_accessor :mm
    
    def initialize(mm)
        @mm = mm
    end
    
    def give_dolls
        puts "#{mm.name} 送你洋娃娃"
    end
    
    def give_flowers
        puts "#{mm.name} 送你鲜花"
    end
    
    def give_chocolate
        puts "#{mm.name} 送你巧克力"
    end

end

#被追求者类
class Girl
    attr_accessor :name
    
    def initialize(name)
        @name = name
    end
end

xiao_hong = Girl.new(‘小红‘)

xiao_ming = Proxy.new(xiao_hong)
xiao_ming.give_dolls
xiao_ming.give_flowers
xiao_ming.give_chocolate

# -*- encoding: utf-8 -*-

#公共接口module
module GiveGift
    def give_dolls
    end
    
    def give_flowers
    end
    
    def give_chocolate
    end
end

#追求者类
class Pursuit
    include GiveGift
    attr_accessor :mm, :name
    
    def initialize(mm)
        @mm = mm
    end
    
    def give_dolls
        puts "#{mm.name} 替#{name}送你洋娃娃"
    end
    
    def give_flowers
        puts "#{mm.name} 替#{name}送你鲜花"
    end
    
    def give_chocolate
        puts "#{mm.name} 替#{name}送你巧克力"
    end

end

#代理类
class Proxy
    include GiveGift
    attr_accessor :gg
    
    def initialize(mm)
        @gg = Pursuit.new(mm)
    end
    
    def give_dolls
        gg.give_dolls
    end
    
    def give_flowers
        gg.give_flowers
    end
    
    def give_chocolate
        gg.give_chocolate
    end

end

#被追求者类
class Girl
    attr_accessor :name
    
    def initialize(name)
        @name = name
    end
end

xiao_hong = Girl.new(‘小红‘)

xiao_ming = Proxy.new(xiao_hong)
xiao_ming.gg.name = ‘小明‘
xiao_ming.give_dolls
xiao_ming.give_flowers
xiao_ming.give_chocolate