杨辉三角——python

杨辉三角——pythona = []for i in range(8):a.append([])for j in range(8):a[i].append(0)for i in range(8):a[i][0] = 1a[i][i] = 1for i in range(2,8):for j in range(1,i):a[i][j] = a[i-1][j-1] + a[i-1][j]for i i

Z-xina

420人浏览 · 2021-09-24 15:37:55

Z-xina · 2021-09-24 15:37:55 发布

杨辉三角——python

在这里插入图片描述

a = []
for i in range(8):
    a.append([])
    for j in range(8):
        a[i].append(0)
for i in range(8):
    a[i][0] = 1
    a[i][i] = 1
for i in range(2,8):
    for j in range(1,i):
        a[i][j] = a[i-1][j-1] + a[i-1][j]
for i in range(8):
    for j in range(i+1):
        print("{:3d}".format(a[i][j]),end=" ")
    print()