代码编辑器：
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# !/usr/bin/ruby -w2
# -*- encoding:utf-8 -*-3
# filename: main.rb4
# author: 简单教程(www.twle.cn)5
# Copyright © 2015-2065 www.twle.cn. All rights reserved.6
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myhash = Hash["baidu" => "baidu.com", "ali" => "taobao.com"]9
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puts "#{myhash['baidu']}"11
puts "#{myhash['ali']}"12
puts "#{myhash['tencent']}"13