球队预测

 

from random import random
def printInfo():
    print("这个程序模拟两个选手A和B的羽毛球竞技比赛")
    print("程序需要两个选手的能力值0-1")
    print("规则：三局两胜--21分制")
    print("作者：程序小白007--08")

def getInput():
    a = eval(input("请输入选手A的能力值(0-1):"))

    b = eval(input("请输入选手B的能力值(0-1):"))

    m=eval(input("比赛的局数："))

    n = eval(input("模拟比赛的场次:"))
    return a,b,m,n

def printSummary(winsA,winsB):

    n = winsA + winsB

    print("竞技分析开始,共模拟{}场比赛".format(n))

    print("选手A获胜{}场比赛,占比{:0.1%}".format(winsA,winsA/n))

    print("选手B获胜{}场比赛,占比{:0.1%}".format(winsB,winsB/n))

def simNGames(m,n,probA,probB):

    winsA,winsB = 0,0
    wa,wb=0,0

    for i in range(n):
        for i in range(m):

            scoreA,scoreB = simOneGame(probA,probB)

            if scoreA > scoreB:
                 wa += 1
            else:
                wb += 1

            if wa==2:
                winsA+=1
                wa,wb=0,0
                break
            if wb==2:
                winsB+=1
                wa,wb=0,0
                break

    return winsA,winsB

def simOneGame(probA,probB):

    scoreA,scoreB = 0,0

    serving = "A"
    while not gameOver(scoreA,scoreB):

        if serving == "A":

            if random() < probA:

                scoreA += 1
            else:
                serving = "B"
        else:
            if random() < probB:
                scoreB += 1
            else:
                serving = "A"
    return scoreA,scoreB
def gameOver(a,b):
    if(a>=20 or b>=20):
        if(abs(a-b)==2 and a<=29 and b<=29):
            return True
        else:
            return a==30 or b==30
    else:
        return False

def main():
    printInfo()
    probA,probB,m,n = getInput()
    winsA,winsB = simNGames(m,n,probA,probB)
    printSummary(winsA,winsB)

main()