Python微信红包算法

转载自http://www.nonb.cn/blog/python-bonus.html

# -*- coding: utf-8 -*-

import random

import sys

 

def randBonus(min, max, total,num):

    print min, max, total, num 

    #print "{:.2f}".format(3.1415029)

    total = float(total)

    num = int(num)

    min = 0.01

     

    if num < 1:

        return

    if num == 1:

        print "第%d个人拿到红包数:%.2f" % (num,total)

        return

    i = 1

    totalMoney = total

    while(i < num):

        max = totalMoney - min*(num- i)

        k = int((num-i)/2)

        if num -i <= 2:

            k = num -i

        max = max/k

        monney = random.randint(int(min*100), int(max*100))

        monney = float(monney)/100

        totalMoney = totalMoney - monney

        print "第%d个人拿到红包为:%.2f, 余额:%.2f"%(i,monney,totalMoney)

        i += 1

 

    print "第%d个人拿到红包为:%.2f, 余额:%.2f"%(i,totalMoney,0.00)

 

if __name__ == '__main__':

    min = sys.argv[1]

    max = sys.argv[2]

    total = sys.argv[3]

    num = sys.argv[4]

    randBonus(min, max, total, num)

 

执行结果如下:

fzxawang@fzxamatoMacBook-Pro ~$ python bonus.py 0.01 10 20 10

0.01 10 20 10

第1个人拿到红包为:0.18, 余额:19.82

第2个人拿到红包为:2.05, 余额:17.77

第3个人拿到红包为:5.27, 余额:12.50

第4个人拿到红包为:0.90, 余额:11.60

第5个人拿到红包为:0.35, 余额:11.25

第6个人拿到红包为:1.77, 余额:9.48

第7个人拿到红包为:2.31, 余额:7.17

第8个人拿到红包为:0.75, 余额:6.42

第9个人拿到红包为:6.24, 余额:0.18

第10个人拿到红包为:0.18, 余额:0.00