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读取dwg、excel office cad 通用类 封装好 解压能用(Read the general classes of DWG and excel office cad, pack them well and use them for decompression)

ibatis 和spring的整合，详细的说明了ibatis的各种查询方式和spring的各种整合配置

生成Sierpinski垫片的IFS方法 java代码(IFS method for generating Sierpinski gasket)

这是一个用java实现的用户登录系统。是很简单的一个登陆对话框，没有更深的东西。但对于初学java的人来说是一个很好的案例(This is a java implementation to use a user login system. Is a very simple login dialog box, there is no deeper things. But for people who are beginners java is a good case)

这是一个基于crm管理系统的Java程序网站(CRM management system)

关于java学习的电子书！值得一看！起点低，即使没有任何编程经验的，也可以通过本书的大量实例讲解掌握java！(Java learning ebook! Worth a visit! The starting point is low, even in the absence of any programming experience, you can also book a large number of examples to explain mastered java!)

说明：  基于JavaGUI的数学题练习平台，题目分为小学，初中，高中，每次测验后，会生成当前的测试成绩(JavaGUI-based Mathematics Exercise Platform, the topics are divided into primary, junior and senior high schools, after each test, the current test results will be generated.)

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Java 模式之抽象工厂，详细解答，值得一看(Java model abstraction factory, detailed answers, worth a visit)

说明：  本系统是基于java开发的聊天室。服务端和客户端可以发送和接收消息，由于未写出服务端窗口，聊天记录只会在输出的窗口显示。如果服务器还未启动，客户端不能利用聊天室发消息。若在运行过程中服务器断开，系统会有提示。(This system is a chat room based on java. Both the server and the client can send and receive messages. Since the server window is not written out, the chat record will only be displayed in the output window. If the server has not been started, the client can not use the chat room to send messages. If the server is disconnected during operation, the system will be prompted.)