代码很烂

def triangles():
    lislis=[1]
    maxmax = 6
    n=0
    while n < maxmax:
        yield lislis
        leng = len(lislis)
        lis = [1]
        for i in range(leng):
            if i<(leng-1):
                num = lislis[i]+lislis[i+1]
                lis.append(num)
            else:
                lis.append(1)
        lislis=lis
        n = n+1