Ruby设计模式编程中使用Builder建造者模式的实例（ruby code editor）奔走相告

#
class PersionBuilder
def head
puts ”
end
def body
puts ”
end
def arm
puts ”
end
def leg
puts ”
end
end

#小人一
class PersionThinBuilder < PersionBuilder
def head
puts ‘头’
end
def body
puts ‘瘦身体’
end
def arm
puts ‘双手’
end
def leg
puts ‘双脚’
end
end
#小人二
class PersionFatBuilder < PersionBuilder
def head
puts ‘头’
end
def body
puts ‘胖身体’
end
def arm
puts ‘双手’
end
def leg
puts ‘双脚’
end
end

#指挥者类
class PersionDirect
def initialize(persion)
@persion=persion
end

def create_persion
@persion.head
@persion.body
@persion.arm
@persion.leg
end

end
puts ‘这是第一个小人’
p1=PersionThinBuilder.new
pd1=PersionDirect.new(p1)
pd1.create_persion

puts ‘这是第二个小人’
p2=PersionThinBuilder.new
pd2=PersionDirect.new(p2)
pd2.create_persion