python写的足彩换算相关程序，有兴趣的可以看看

# -*- coding:utf-8 -*- #
import numpy as np
from scipy.optimize import leastsq
from functools import reduce
import time
from mylog import write_affairlog
from sympy import *
def Jc(k):
'''
阶乘基本函数
'''
if k == 0:
return 1
elif k == 1:
return 1
else:
return reduce(lambda a,b : a*b, range(1,(k+1)))
def bs(r,n):
'''
泊松方程
'''
if n<0:
p = 0
else:
p = (np.e**(-r))*(r**n)/Jc(n)
return p
def possibility(pHostScore, pGuestScore):
'''
计算胜平负的概率