标签:abc ber aik code article key number pytho ring
生成器:杨辉三角
参考廖雪峰的url:https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/0014317799226173f45ce40636141b6abc8424e12b5fb27000#0
或者zip另一方法:http://blog.csdn.net/zmy_3/article/details/51173580
杨辉三角定义如下:
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
把每一行看做一个list,试写一个generator,不断输出下一行的list:
def triangles(n):
N=[1]
while len(N)<n+1:
yield N
N.append(0)
N=[N[i-1] + N[i] for i in range(len(N))]
标签:abc ber aik code article key number pytho ring
原文地址:http://www.cnblogs.com/hzchh/p/7967788.html