A Simple Windows software, notify only on taskbar with no gui display.Origined from https://www.cnblogs.com/1-2-3/p/4025445.html. Add workmusic and restdone notify music and user-guide。

原作者https://www.cnblogs.com/1-2-3/p/4025445.html. 编程语言为C#，加了背景音乐与提示音，中文操作手册。可执行程序在debug目录下。