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代码编辑器：
# !/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. require "thread" puts "Synchronize Thread" @num=200 @mutex=Mutex.new def buyTicket(num) @mutex.lock if @num>=num @num=@num-num puts "you have successfully bought #{num} tickets" else puts "sorry,no enough tickets" end @mutex.unlock end ticket1=Thread.new 10 do 5.times do |value| ticketNum=15 buyTicket(ticketNum) sleep 0.01 end end ticket2=Thread.new 10 do 5.times do |value| ticketNum=20 buyTicket(ticketNum) sleep 0.01 end end sleep 1 ticket1.join ticket2.join
运行结果：