# !/usr/bin/ruby -w

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

# filename: main.rb

# author: 简单教程(www.twle.cn)

# Copyright © 2015-2065 www.twle.cn. All rights reserved.

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​

# 定义类

class Box

   # 构造方法

   def initialize(w,h)

      @width, @height = w, h

   end

   # 实例方法

   def getArea

      @width * @height

   end

end