编辑代码

# 创建两个3x3的矩阵
matrix1 = [[1, 2, 3],
           [4, 5, 6],
           [7, 8, 9]]

matrix2 = [[10, 11, 12],
           [13, 14, 15],
           [16, 17, 18]]

# 创建一个空的结果矩阵
result_matrix = [[0, 0, 0],
                 [0, 0, 0],
                 [0, 0, 0]]

# 进行矩阵相减
for i in range(len(matrix1)):
    for j in range(len(matrix2[0])):
        result_matrix[i][j] = matrix1[i][j] - matrix2[i][j]

# 输出结果
print("矩阵1：")
for row in matrix1:
    print(row)

print("矩阵2：")
for row in matrix2:
    print(row)

print("矩阵1和矩阵2相减的结果：")
for row in result_matrix:
    print(row)