def triangles():
n=1
L2=[1,1]
L3=L2
yield [1]
while True:
for x in range(0,n-1):
L3.insert(x+1,L2[x]+L2[x+1])
yield L3
L2=L3
L3=[1,1]
n=n+1
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用户6534737704
def triangles():
n=1
L2=[1,1]
L3=L2
yield [1]
while True:
for x in range(0,n-1):
L3.insert(x+1,L2[x]+L2[x+1])
yield L3
L2=L3
L3=[1,1]
n=n+1