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应老师要求做的VB课后练习内容，这是第二个实验内容。(This is the second test.)

MFC做的通讯录，利用ODBC连接access数据库，能够对数据进行写入、读出和修改。适合初学者参考。[注：需要自己配置数据源，也可以不配置，运行程序两次就行，第一次相当于是配置](MFC to do the book, using ODBC to connect access database, the data can be written to, read and modify. Suitable for beginners reference.)

VB和信捷PLC通讯的源代码，包括读写，置位，独一无二哦，网上都找不到的。(vb and thinget plc communication program source,good thing)

说明：  是一个图片见面预览，模拟工业触摸屏的画面，所以画面元素比较单一，但是仅仅做预览效果不错(Is an image preview meeting, simulation of industrial touch-screen picture, so the image elements of relatively simple, but only to do a good preview)

学习c语言的好书，也是一本c程序员的参考书籍，是英文版的(Learning c language books, is a C programmer' s reference books, English)

说明：  一个具备打印功能的VB报表设计器源代码，可以用来设计复杂的报表。(A VB report designer source code with printing function can be used to design complex reports.)

用于变电所的电力103通信测试的源代码,主要用在工控行业(103 for electricity substation communications test source code, mainly used in the industrial sector)

将TCHAR类型转换成CString类型，VC++精选编程学习源码，很好的参考资料。(The TCHAR CString type, VC++ select learning programming source code, a good reference.)

自控应用svm的介绍文档，方便下载传看。(mysvm is used to train a SVM on a given example set and testing the results.it is very conveninent to learn about it by u self.)

说明：  GpRS数据中心代码，基本上实现了数据中心的大部分功能(GpRS data center code, basically realize the majority of the data center functions)