def triangles():
L=[1]
while True :
yield L n=1 T=L[:]
while n < len(T):
L[n]=T[n-1]+T[n]
n = n + 1
L.append(1)
i = 0
for x in triangles():
print (x)
i = i + 1
if i == 10:
break
小笔记:
1.T=L是指T,L指向同一列表,而T=L[:]则是复制给T,千万不能搞混不然结果出错.
2.a,b = b, a+b是解包操作(教程中斐波那契那部分)
意思是:tmp = a
a = b
b = tmp +b
3.for x in triangles(): 这里是有序迭代triangles.
村口小猎人
def triangles(): L=[1] while True : yield L
n=1
T=L[:] while n < len(T): L[n]=T[n-1]+T[n] n = n + 1 L.append(1) i = 0 for x in triangles(): print (x) i = i + 1 if i == 10: break
小笔记: 1.T=L是指T,L指向同一列表,而T=L[:]则是复制给T,千万不能搞混不然结果出错. 2.a,b = b, a+b是解包操作(教程中斐波那契那部分) 意思是:tmp = a a = b b = tmp +b 3.for x in triangles(): 这里是有序迭代triangles.