python 生成金字塔，2^n

code

row = int(input("请输入行数："))
num =
sum =
for i in range(, row + ):
    for j in range(row - i, , -):
        print(" ", end="\t")

    for j in range(, i + ):
        print(num, end="\t")
        num *=
        sum = num
    num =
    sum //= 2
    for j in range(, i + ):
        print(sum//2, end="\t")
        sum //= 2

    print("")