说明：  用于kmeans算法实现,是用C语言编写的，易于转为C++，可以方便想知道kmeans后台算法的朋友学习，希望那个对大家有所帮助
(Kmeans algorithm used to realize, is to use C language, easy to C++, Can easily want to know the background kmeans Friend learning algorithm, in the hope that all of you to help)