人脸定位实例，是用 visual C++ 开发的，是学习的好材料-Face positioning example is the use of visual C development, is a good learning materials

C语言K近邻分类器KNN,有5个简单的例子供学习-knn classifier in C,5 simple examples are included

BP神经网络C程序，在该题的程序设计中采用了文件相关的操作，记录了相关学习和测试信息数据。-BP neural network C program, use the file related operations in the program design of the subject, record related learning and testing information data.