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改进版

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sword_v1

#1 Created at ... [Delete] [Delete and Lock User] 
def triangles():
    b = [1]
    while True:
        yield b
        b = [x+y for x,y in zip(b+[0],[0]+b)]

小米火烧nalakuvara

#2 Created at ... [Delete] [Delete and Lock User]

厉害啊！ 能请教下思路吗， 是怎么想到前后加0相加的？

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