模拟乒乓球比赛

Posted 2020-11-27 qq1294

#乒乓球比赛，单打淘汰与双打
#规则：单打淘汰制，5局3胜。双打7局4胜，先得11分者胜。若双方都为10分，则先到2分者胜
#分俩个队进行，每个队分别有俩个队员。
#1队队名：IG，2队队名：RNG
import random as r
def printIntro():
    print("这个程序模拟四个选手A和B和C和D的某种竞技比赛")
    print(‘并且设定A与B在1队，C与D在2队‘)
    print("程序运行需要选手的能力值（以0到1之间的小数表示）")
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): "))
    c = eval(input("请输入选手C的能力值(0-1): "))
    d = eval(input("请输入选手D的能力值(0-1): "))
    n = eval(input("模拟比赛的场次: "))
    return a,b,c,d,n
def simNGames(n, probA, probB,probC,probD):
    wins1,wins2=0,0
    for i in range(n):
        scoreA, scoreB = shuangda(probA,probB,probC,probD)
        if scoreA > scoreB:
            wins1 += 1
        else:
            wins2 += 1
    return wins1, wins2
def gameover(score1,score2,k):
    if(score1==10 and score2==10):
        if k==1:
            score1+=1
        if k==2:
            score2+=1
    if(score1==11 or score2==1):
        return score1,score2
def gameover1(number1,number2):
    return number1==3 or number2==3
def onevone(prob1,prob2):
    number1,number2=0,0
    serving = "A"
    while not gameover1(number1,number2):
        if(number1==2 and number2<2):
            k=1
        if(number1<2 and number2==2):
            k=2
        if serving == "A":
            if r.random() < prob1:
                number1 += 1
            else:
                serving="B"
        else:
            if r.random() < prob2:
                number2 += 1
            else:
                serving="A"
    return number1,number2,k
def taotai(probA,probB,probC,probD):
    score1, score2 ,k,m= 0,0,0,0
    number1,number2,k=onevone(probA,probC)
    score1+=number1
    score2+=number2
    if score1>score2:
        number1,number2,m=onevone(probA,probD)
        score1+=number1
        score2+=number2
        if number1>number2:
            score1+=number1
            score2+=number2
        else:
            number1,number2,m=onevone(probB,probD)
            score1+=number1
            score2+=number2
    else:
        number1,number2,m=onevone(probB,probC)
        score1+=number1
        score2+=number2
        if number1<number2:
            score1+=number1
            score2+=number2
        else:
            number1,number2,m=onevone(probB,probD)
            score1+=number1
            score2+=number2
    m=k
    return score1,score2,m
def shuangda(probA,probB,probC,probD):
    number1,number2=0,0
    score1,score2,k=taotai(probA,probB,probC,probD)
    number1+=score1
    number2+=score2
    serving = "A"
    while not gameover(number1,number2,k):
        if serving == "A":
            n=r.random()
            if (n>probA and n>probB):
                serving="B"
            else:
                number1+=1
        else:
            N=r.random()
            if (N>probC and N>probD):
                serving="A"
            else:
                number2+=1
    return number1,number2
def printSummary(winsA, winsB):
    n = winsA + winsB
    print("竞技分析开始，共模拟{}场比赛".format(n))
    print("1队获胜{}场比赛，占比{:0.1%}".format(winsA, winsA/n))
    print("2队获胜{}场比赛，占比{:0.1%}".format(winsB, winsB/n))
def main():
    printIntro()
    probA, probB, probC, probD, n = getInputs()
    wins1, wins2 = simNGames(n,probA,probB,probC,probD)
    printSummary(wins1, wins2)
main()