ann是数学工具,实现两组数据的映射（类似函数的映射,不同的是它强大地实现了两组任意阶矩阵之间的映射关系）其思想是利用误差作为修正映*确度的指导,最终实现符合要求的映射.-Ann is a mathematical tool to achieve the mapping of two sets of data (similar to the function of the mapping, the difference is that it is strong to achieve the t