用ACE做的计时器。粗计时，就是不是很精确的

altium designer教程，由哈工大录制的，可以帮助学习pcb制图-altium designer tutorials, recorded from the Harbin Institute of Technology can help to learn pcb Mapping

A good document on excel formulas -A good document on excel formulas

This book provides readers with the knowledge of Visual C# concepts. In addition to the concepts explained in the chapters, the book provides readers with several projects that enable them to create Windows applications,Web services,Web applications, and mobile Web applications.The book aims for providing the readers with extensive knowledge of C# so that they are able to develop live projects using C#. The book is aimed at readers with a basic knowledge of programming.

是关于网页制作的ppt文档，介绍的很全面，感兴趣的可以-is on the web ppt documents, introduced by the very comprehensive and interesting look at

员工排班系统需求分析、系统设计文档及数据库表结构-Staff scheduling system needs analysis, system design documents and database table structure

东之源超市管理系统是用delphi开发的基于windows的小型数据库管理软件。使用该软件对中小型超市进行简单的进销存管理和数据查询，将给您的工作带来方便。该软件有界面漂亮、操作方便、简单管理等特点。 　　 本软件可以实现的功能如下： 　　 用户管理，包括用户的添加、删除、密码和权限的修改； 　　 备份管理，包括数据库的备份、数据库的还原； 　　 商品管理，商品的添加、删除、修改、销量统计和分类查询； 　　 商品报表； 　　 销售商品：通过输入货物编号和数量实现商品销售，并提供库存判断、找零计算等功能； 　　 销售报表和销售历史； 　　 今日盘点，告诉用户今日的销售额是多少； 　　 人事管理，共享版本不提供些功能； 　　 帮助功能，软件的使用或相关说明； 　　 登录和退出登录，实现了管理员和销售员不同权限的分类；-East Supermarket source management system is developed based on delphi windows of the small database management software. Use the software to small and medium-sized supermarkets simple inventory management and data inquiries, your work will bring convenience. The software interface is beautiful, easy to operate and simple management features. The software can achieve the following functions : user management, including users add, delete, password changes and competence; Backup management, including database backup and restore databases; Commodity Management, a commodity add, delete, modify, sales statistics and classifications inq

软件架构相关思想，项目构架师的资料项目构架师的资料-Software architecture-related ideas, the project architect of the data items of information architect

程序实现80位长度的减法运算，，以tc实现。原理是使用数组来进行运算-program 80 subtraction length of the operation, to achieve tc. The principle is to use the array operator

Please read your package and describe it at least 40 bytes in English. System will automatically delete the directory of debug and release, so please do not put files on these two directory.

红外适配器应用程序和测试规范的相关文档！包括红外适配器的相关介绍。