dice.py 文件源码

def nrolls(count, n):
    "roll an n-sided die count times"
    if n == "F":
        return [random.randint(-1, 1) for x in xrange(min(count, 100))]
    if n < 2:  # it's a coin
        if count < 100:
            return [random.randint(0, 1) for x in xrange(count)]
        else:  # fake it
            return [int(random.normalvariate(.5 * count, (.75 * count) ** .5))]
    else:
        if count < 100:
            return [random.randint(1, n) for x in xrange(count)]
        else:  # fake it
            return [int(random.normalvariate(.5 * (1 + n) * count,
                (((n + 1) * (2 * n + 1) / 6. -
                (.5 * (1 + n)) ** 2) * count) ** .5))]