def triangle(): l = [1] while True: yield l l = [1] + [l[i] + l[i+1] for i in range(len(l)-1)] + [1]
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女神-燕玲-经
def triangle(): l = [1] while True: yield l l = [1] + [l[i] + l[i+1] for i in range(len(l)-1)] + [1]