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First, XP is a programming discipline. We’ll look at a core innovation: how “test-first” changes the programming process itself. We’ll also discuss refactoring, the way XP programmers improve their code. Second, XP is a team discipline. It has evolved a number of practices that help produce a high-performing team. We’ll compare XP to alternative practices, and see some of them in action.

VC++可切换到数字模式的圆形时钟，VC++编程学习源码，很好的参考资料。(VC++ round the clock to switch to digital mode, VC++ programming learning source, a good reference.)

简单的VB文件分割、合并工具,有需要的就下载吧。(Simple VB file split, merge tool, there is a need to download it.)

一个关于成绩管理系统的课设:-)希望大家喜欢(A performance management system on a course set up :-) I hope you like)

1 button device with bascom avr

说明：  这个是我的一个小小的作品，希望能带来一定的帮助，也希望我能从这个上面下到好的东西(This is a little of my work, hope to bring some help. I also hope that from the top down to the good things)

使用MFC写的一个拼图游戏，可以点击浏览载入不同的图片来进行拼图，适合初学者学习MFC和游戏编程参考(Use MFC to write a jigsaw puzzle, you can click here to load different images puzzles, and games suitable for beginners to learn MFC programming reference)

实现excel的批量打印，而且可以自由选择，预览(Achieve excel batch print, and are free to choose, preview)

能对输入的两个数进行任意的四则运算,输入数字和符号即可(to the importation of two arbitrary number of the four operations, the importation of figures and symbols can be)

VC++高级编程孙鑫全20讲PPT讲义，是学习C++的好工具(this is a PPT，about VC++)