简单快速近邻算法：再二维平面一矩形范围内随机产生100个训练样本，任意划分为三个区域，用快速近邻法确定待识别实验样本的所属分类-Simple and rapid nearest neighbor: Another two-dimensional plane within a rectangle of 100 randomly generated training samples, arbitrary divided into three regions, with the fast nearest neighbor test samples to be identified to determine their classification