k均值算法，数据挖掘里面比较基础的算法，实现类聚-k-means algorithm, which based on the comparison of data mining algorithms to achieve clustering

KMeans算法，经典的数据挖掘算法，设置了三个中心点，初始化是采用读取数据集的三个点作为中心的。-KMeans Algorithm, it is very famous data mining algorithm, i set three center, and it was initialed by the data we classify.