摘要： 6-16.矩阵。处理矩阵M和N的加和乘操作。【答案】(a)M和N的加操作代码如下：def matrix_input(string, m, n): matrix = [] a = string.split(',') for i in range(m * n): matrix.append(a[i]) return matrix def matrix_display(matrix, m, n): for i in range(m): for j in range(n): print matrix[i * n + j], print '\r'M_row = int(r 阅读全文