模拟乒乓球双打和单打比赛

规则：单打七局四胜，双打五局三胜。单局：先得11分者胜；若11平，则先多得2分者胜。

乒乓球赛单打预测：

from random import random
def printIntro():
    print("这个程序模拟两个选手A和B的某种比赛")
    print("程序运行需要A和B的能力值（0到1之间）")
def getInputs():
    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）："))
    return a,b
def simNGames(probA,probB):
    winsA,winsB=0,0
    for i in range(7):
        scoreA,scoreB=simOneGame(probA,probB)
        if scoreA>scoreB:
            winsA+=1
            if winsA==4:
                break
        else:
            winsB+=1
            if winsB==4:
                break
    return winsA,winsB
def gameOver(a,b):
    return a==11 or b==11
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 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{:.1%}".format(winsA,winsA/n))
    print("选手B获胜{}场比赛，占比{:.1%}".format(winsB,winsB/n))
def main():
    printIntro()
    probA,probB = 0.5,0.5
    winsA,winsB = simNGames(probA,probB)
    printSummary(winsA,winsB)
    print("043林树锋的结果截图")

main()

结果：

乒乓球赛双打预测：

from random import random
def printIntro():    
    print("这个程序模拟两个选手A和B的某种比赛")
    print("程序运行需要A和B的能力值（0到1之间）")
def getInputs():
    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）："))
    return a,b
def simNGames(probA,probB):
    winsA,winsB=0,0
    for i in range(5):
        scoreA,scoreB=simOneGame(probA,probB)
        if scoreA>scoreB:
            winsA+=1
            if winsA==3:
                break
        else:
            winsB+=1
            if winsB==3:
                break
    return winsA,winsB
def gameOver(a,b):
    return a==11 or b==11
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 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{:.1%}".format(winsA,winsA/n))
    print("选手B获胜{}场比赛，占比{:.1%}".format(winsB,winsB/n))
def main():
    printIntro()
    probA,probB = 0.5,0.5
    winsA,winsB = simNGames(probA,probB)
    printSummary(winsA,winsB)
   

main()

结果：