Python 体模拟育比赛（排球）

Posted 2020-11-27 hayhong

import random
def printIntro():
    print("2019310143145")
    print("模拟排球比赛")
    print("五局三胜制")
    print("程序运行需要ABCD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）: "))
    return a,b,c,d

def simOneGame(probA, probB):     # 进行一场比赛
    scoreA, scoreB = 0, 0       # 初始化AB的得分
    serving = "A"         # 首先由A发球
    while not gameOver(scoreA, scoreB):  #用while循环来执行比赛
        if serving == "A":
            if random.random() < probA:# random() 方法返回随机生成的一个实数，它在[0,1)范围内。
                scoreA += 1     # 用随机数来和能力值比较从而分出胜负
            else:
                serving = "B"
        else:
            if random.random() < probB:
                scoreB += 1
            else:
                serving = "A"
    return scoreA, scoreB

def simNGames(probA, probB):    #进行5场比赛
    winsA, winsB = 0, 0   # 初始化AB的胜场数
    for i in range(5):             
        scoreA, scoreB = simOneGame(probA, probB)
        if scoreA > scoreB:
            winsA += 1
        else:
            winsB += 1
    return winsA, winsB

def gameOver(a, b):    #比赛结束
    return (a >= 25 and a-b>1) or (b >= 25 and b-a>1)  #必须大两分
    
def oneround(probA, probB):
    roundA,roundB=0,0
    while not roundover(roundA,roundB):
        A,B=simNGames(probA, probB)
        if A>B:
            roundA+=1
        else:
            roundB+=1
        return roundA,roundB

def Nround(probA,probB):
    winsA, winsB = 0, 0
    for i in range(5):            
        scoreA, scoreB = oneround(probA,probB)
        if scoreA > scoreB:
            winsA += 1
        else:
            winsB += 1
    return winsA, winsB
    
def roundover(a,b):
    return a == 4 or b == 4


printIntro()
probA,probB,probC,probD = getInputs()
winA,winB=Nround(probA, probB)
print("-------------------")
print("第一轮比赛开始")
print("选手A获胜{}回合".format(winA))
print("选手B获胜{}回合".format(winB))
if winA>winB:
    print("A胜利")
    E=‘A‘
else:
    print("B胜利")
    E=‘B‘
winC,winD=Nround(probC, probD)
print("选手C获胜{}回合".format(winC))
print("选手D获胜{}回合".format(winD))
if winC>winD:
    print("C胜利")
    F=‘C‘
else:
    print("D胜利")
    F=‘D‘
print("---------------------")
print("第二轮开始")
winE=max(winA,winB)
winF=max(winC,winD)
winE,winF=Nround(probA, probB)
print("选手{}获胜{}回合".format(E,winE))
print("选手{}获胜{}回合".format(F,winF))
if winE>winF:
    print("{}胜利,为冠军".format(E))
else:
    print("{}胜利,为冠军".format(F))