2019-05-12 Python之模拟体育竞赛

一.简介

可以选择任意规则，模拟不同的两个队伍进行球赛的模拟比赛

二.源代码

函数介绍：

from random import *

#输出介绍信息
def printIntro():
    print("这个程序模拟两个选手A和B的某种竞技比赛")
    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）")

#输入，获取能力值和比赛场数
def getInputs():
    #获取数据

    a = 0.45
    b = 0.5
    n = 5
    '''
    a = eval(input("请输入a选手的能力值："))
    b = eval(input("请输入b选手的能力值："))
    n = eval(input("模拟比赛场次："))
'''
    return a,b,n

#比赛全过程
def simNGames(n,probA,probB):
    print("竞技分析开始，共模拟{}场比赛".format(n))
    winsA, winsB = 0,0
    m =eval(input("1.排球，2乒乓球，3足球，4篮球，请输入选择的规则："))

    for i in range(1, int(n/2)+2): #n为比赛场数
        scoreA, scoreB=simOneGame(int(n/2)+1, probA, probB, m) #单场比赛过程
        print("第{}场比赛得分情况，A:{},B:{}".format(i, scoreA, scoreB))
        if scoreA > scoreB:
            winsA += 1
        else:
            winsB += 1
    return winsA, winsB

#单场比赛过程，返回比分
def simOneGame(i, probA, probB, m):
    global k #记录局数
    k += 1
    if m == 1 :
        scoreA, scoreB = Volleyball_game(k, i, probA, probB)
    elif m == 2:
        scoreA, scoreB = Table_Tennis_game(k, i, probA, probB)
    elif m == 3:
        scoreA, scoreB = Football_game(i, probA, probB)
    elif m == 4:
        scoreA, scoreB = Basketball_game(i, probA, probB)

    return scoreA, scoreB

#输出获胜场数和比例
def printSummary(winsA, winsB):
    n = winsA + winsB
    print("选手A获胜{}场比赛，占比例{:0.2%}".format(winsA, winsA/n))
    print("选手B获胜{}场比赛，占比例{:0.2%}".format(winsB, winsB/n))

#排球比赛单局
def Volleyball_game(k, i, probA, probB):
    scoreA, scoreB = 0,0
    serving = 'A'
    if k!=i: #不是最终局
        while not ((scoreA == 25 and scoreA >= scoreB-2) or (scoreB == 25 and scoreB >= scoreA-2)) : #如果未达到单场结束条件
            if serving == 'A':
                if random()<probA:
                    scoreA += 1
                else:
                    serving='B'
            else:
                if random()<probB:
                    scoreB += 1
                else:
                    serving='A'
    else: #最终局
        while not ((scoreA == 15 and scoreA >= scoreB-2) or (scoreB == 15 and scoreB >= scoreA-2)):
            if serving == 'A':
                if random()<probA:
                    scoreA += 1
                else:
                    serving='B'
            else:
                if random()<probB:
                    scoreB += 1
                else:
                    serving='A'
    return scoreA, scoreB

#足球比赛一场
def Football_game(i, probA, probB):
    scoreA, scoreB = 0, 0
    a, b = randint(int(probA*7), int(probA*14)), randint(int(probB*7), int(probB*14)) #根据能力值随机出进攻次数
    for i in range(int(a)):
        if random() - 0.1 > probA:
            scoreA += 1
    for i in range(int(b)):
        if random() - 0.1 > probB:
            scoreB += 1

    while scoreA == scoreB : #点球大战
        if random() > probA:
            scoreA += 1
        if random() > scoreB :
            scoreB += 1
    return scoreA, scoreB

#乒乓球比赛单局
def Table_Tennis_game(k, i, probA, probB):
    scoreA, scoreB = 0, 0
    serving = 'A'
    while not ((scoreA == 11 and scoreA >= scoreB-2) or (scoreB == 11 and scoreB >= scoreA-2)): #如果未达到单场结束条件
        if serving == 'A':
            if random() < probA:
                scoreA += 1
            else:
                serving = 'B'
        else:
            if random() < probB:
                scoreB += 1
            else:
                serving = 'A'
    return scoreA, scoreB

#篮球比赛一场
def Basketball_game(k, i, probA, probB):
    scoreA, scoreB = 0, 0
    a, b = randint(int(probA * 150), int(probA * 170)), randint(int(probB * 150), int(probB * 170))  # 根据能力值随机出进攻次数
    for i in range(int(a)):
        if random() > probA:
            if random() > 0.62:
                scoreA += 3
            else:
                scoreA += 2
    for i in range(int(b)):
        if random() > probB:
            if random() > 0.62:
                scoreB += 3
            else:
                scoreB += 2

    while scoreA == scoreB:  # 加时赛
        a, b = randint(int(probA * 10), int(probA * 15)), randint(int(probB * 10), int(probB * 15))  # 根据能力值随机出进攻次数
        for i in range(int(a)):
            if random() > probA:
                if random() > 0.62:
                    scoreA += 3
                else:
                    scoreA += 2
        for i in range(int(b)):
            if random() > probB:
                if random() > 0.62:
                    scoreB += 3
                else:
                    scoreB += 2
    return scoreA, scoreB

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

k = 0
main()

三.效果