c语言的k均值聚类算法。给定类的个数K，将N个对象分到K个类中去，使得类内对象之间的相似性最大，而类之间的相似性最小的算法。-c language, k-means clustering algorithm. Given the number of categories K, will be assigned to N objects of class K to make class the similarities between objects the most, while the category of the similarity between the smallest algorithm.