一个可以分多类的knn程序。用于多类识别特别是高维的图像识别。-A class knn procedure. For many types of identification, especially high-dimensional image recognition.

最近邻分类器（KNN）的C＋＋源码，适合模式识别、图像处理开发者用-nearest neighbor classifier (KNN) of the C++ source code, suitable for pattern recognition, image processing developers use