实现校园ic卡的注册卡，注销卡，续钱，借书，详细查询卡内消费记录等功能-Achieve campus ic card registration card, canceled the card, the money continued, library, card spending records detailed queries and other functions

mini搜索引擎，载入50个文本文件，然后通过输入关键词来计算词出现的次数-we will design and implement a mini search engine that is used to search through a set of 50 documents and a set of sample queries. The data structures used for storing is vector and array. The algorithm in this

MongoDB3.0驱动封装,可以直接使用来操作mongodb数据库,增删查改,和多种复合查询.目前游戏服务器正在使用-翻译 MongoDB3.0 drive package, can be used directly to operate mongodb , additions and deletions to change the investigation, and a variety of complex queries. The game server is using