乒乓球比赛

import random


def printIntro():
    print("这个程序是模拟两个选手A和B的乒乓球科技竞赛=====13号=====")
    print("程序运行需要A和B的能力值（以0到1之间的小数表示）")


def getInputs():
    a = eval(input("输入选手A的能力值（0到1）"))
    b = eval(input("输入选手B的能力值（0到1）"))
    n = eval(input("模拟比赛的场次"))
    return a, b, n


def simNGames(n, probA, probB):
    winsA, winsB = 0, 0
    for i in range(n):
        while Win(winsA, winsB, n):
            scoreA, scoreB = simOneGame(probA, probB)
            if scoreA > scoreB:
                winsA += 1
            else:
                winsB += 1
    return winsA, winsB


def Win(c, d, n):
    if c > int(n / 2 + 1) and (c - d) > 2:
        return False
    elif int(n / 2 + 1) and (d - c) > 2:
        return False
    else:
        return True


def simOneGame(probA, probB):
    scoreA, scoreB = 0, 0
    serving = "A"
    while not gameOver(scoreA, scoreB):
        if serving == "A":
            if random.random() < probA:
                scoreA += 1
            else:
                serving = "B"
        else:
            if random.random() < probB:
                scoreB += 1
            else:
                serving = "A"
    return scoreA, scoreB


def gameOver(a, b):
    if a != b:
        if a == 11 or b == 11:
            return True
        elif a==10 or b ==10:
            if abs(a - b) < 2:
              return False
        else:
            return False



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 main():
    printIntro()
    probA, probB, n = getInputs()
    winsA, winsB = simNGames(n, probA, probB)
    printSummary(winsA, winsB)


main()