基于电梯客流量的编程，针对一幢30层的建筑随机的生成每一层的上行下行客流，及其相应的目标楼层。-Elevator traffic based programming, for a 30-story building generates a random passenger flow upstream and downstream of each layer, and their respective target floor.

网络投票评选管理系统 随着计算机和电子通讯技术的飞速发展和网络应用的深化，网络版的投票评选在活动中的方便性和重要性，目前系统定位于投票评选行业的量身开发，打造行业的领先服务评选品牌，系统整合单选/多选一体化功能，并适合图文评选,适合用于大型媒体单位、机关单位、院校机构、集团公司、门户网站可用于城市评选、美景评选、优秀人物评选、活动评选，事迹评选. -Network Management System voted with computers and the rapid development

使用型数据库Mysql的简介和使用 内容比较生动，mysql的故事-It was not too long ago that you were simply out of luck if you wanted to build an application backed by a robust database on a small budget. Your choices were quite simple: shell out thousands—or even tens or