for i in range(1, 10, 2):
    print(i)

for i in range(1, 10, 7):
    print(i)

# 奇偶数据集

matrix = [0 for i in range(4)]  # [[1,1,1,1], 0, 0, 0]

print(matrix)

# 生成3*4 的二维数组
print('-' * 20)
matrix = [[[0 for i in range(4)] for i in range(4)] for j in range(4)]

print(matrix)