#牛牛的矩阵乘法
import copy
X = [[13, -1, 4], [5, 0, 6], [1, 9, -3]]
Y = copy.deepcopy(X)
N = []
for i in range(0, 3):
for j in range(0, 3):
N = Y[i][j] + 1
#定义一个矩阵相乘函数
def numpy_multiply(X, Y):
Z = [[0 for i in range(len(X))] for j in range(len(X))]
for i in range(len(X)):
for j in range(len(X)):
for m in range(len(X)):
Z[i][j] += X[i][m] * Y[m][j]
return Z
#函数调用
if name == 'main':
print(numpy_multiply(X, Y))
#题目给的答案原是X与Y(仅是拷贝后的Y)相乘的结果,能通过 如果是X与Y(拷贝后再加1后的Y),那么答案与原题给的输出答案不符合,所以不能通过