乘以2矩阵时的打印问题

# 定义两个矩阵
matrix1 = [[1, 2, 3],
           [4, 5, 6],
           [7, 8, 9]]

matrix2 = [[10, 11],
           [12, 13],
           [14, 15]]

# 计算结果矩阵
result = [[0, 0],
          [0, 0],
          [0, 0]]

for i in range(len(matrix1)):
    for j in range(len(matrix2[0])):
        for k in range(len(matrix2)):
            result[i][j] += matrix1[i][k] * matrix2[k][j]

# 打印结果矩阵
for row in result:
    print(row)

# 定义一个矩阵
matrix = [[1, 2, 3],
          [4, 5, 6],
          [7, 8, 9]]

# 将矩阵中的每个元素乘以2，并打印结果矩阵
for i in range(len(matrix)):
    for j in range(len(matrix[0])):
        matrix[i][j] *= 2

for row in matrix:
    print(row)