mapped_struct.py 文件源码

def gen_values(self, n, reversed = False, shuffled = False, gen_dupes = False):
        if reversed:
            keys = xrange(n-1,-1,-1)
        else:
            keys = xrange(n)
        if shuffled:
            keys = list(keys)
            r = random.Random(1234827)
            r.shuffle(keys)
        if gen_dupes:
            return itertools.chain(
                itertools.izip(keys, xrange(0, 2*n, 2)),
                itertools.islice(itertools.izip(keys, xrange(0, 2*n, 2)), 10, None),
            )
        else:
            return itertools.izip(keys, xrange(0, 2*n, 2))