Python求二维数组中某列的最大值 主要运用np.amax() importnumpyasnphelp(np.amax) a = np.arange(9).reshape((3,3)) max_all = np.amax(a) max_dimension1 = np.amax(a, axis=0) max_dimension2 = np.amax(a, axis=1)print('a:\n',a)print('max_all:', max_all)print('max_dimension...