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说明：  构建swing图形界面，和监听方法的一些操作(Swing GUI building, and monitoring methods used in the operation)

特征线法设计二维风洞喷管,具体理论可参见气体动力学教材(design of two dimensional nozzle by characteristic method)

说明：  Android Studio 源代码工程，帮助大家查阅审核，编写时可以做参考(Android Studio Main Project)

Test String.prototype.replace.

用java实现关联分析的算法代码GreatFPtree(java GreatFPtree)

人事管理系统，专门做人事管理，增删改查人员信息，账号绑定(Personnel management system, specializing in personnel management, adding, deleting and modifying personnel information, account binding)

GB28181-2011T 安全防范视频监控联网系统信息传输、交换、控制技术要求(GB SAFE VIDEO)

说明：  Java编程基础，关于api中String类中的方法实现，适合Java学习着使用(Java programming foundation, about the method implementation in String class in api, suitable for Java learning to use)

客户端的聊天内容通过json格式封装(包含聊天内容、发送人信息)之后，HTTP请求百度服务器，即请求把该消息发送到指定id的用户，请求成功之后，百度服务器就把我们的信息转发给指定的用户，对应用户再解析json格式的信息，就可以知道该消息来自何处，以及消息内容。(Chat client via json format package (includes chat, sender information), after, HTTP requests Baidu server, which sends the message to the requesting user specified id, after the request is successful, Baidu server took our information forwarded to the designated users, the corresponding user information and then parse json format, you can know that the message came from, and message content.)

网上书店，具有搜索，查询，购物车，购买，分类，销售榜的功能(online bookes shopping)