杨辉三角的Python实现
杨辉三角的Python实现
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
Python生成器实现杨辉三角:
# python
def yanghui_trangle(n):
if not isinstance(n, int) or n <= 0:
print('error')
line = [1]
for i in range(n):
yield line
line = [1] + [line[i] + line[i+1] for i in range(len(line) - 1)] + [1] # 生成下一行
for i in yanghui_trangle(10):
print(i)