用VC6.0实现图片截屏,并保存在默认的C盘目录下,对初学者学习图片保存以及截屏也是个样本-VC6.0 picture with the achievement of Screenshots, and stored in the default directory of the C disk, save the picture to learn for beginners and also a sample screenshot

挺全的virtools实例，样本难度从简单到难，适合初学者学习-They are full of examples Virtools samples simple to difficult, difficult, suitable for beginners to learn

C++抛物线生成代码，输入大于3小于37的一个奇数和模数可以生成由样本点显示的抛物线-C++ code. A simple console program is required to investigate the effects of digitally sampling analoguewaveforms