体育竞技模拟(兵兵球)

比赛规则

1. 一场比赛: 单打:采用七局四胜制
            双打淘汰赛、团体赛:采用五局三胜制
2. 一局比赛: 先得11分为胜,10平后,多得2分为胜 3. 一局比赛: 每队发球2次后,接发球方即成为发球方,依此类推,直至该局比赛结束或者到双方比分都达到10分或实行轮换发球法时,发球和接发次序仍然不变,但每人只轮发一分球

 

 

# coding: utf-8

from random import random
from math import fabs

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)")
    print()

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):"))
    n = eval(input("模拟比赛的场次:"))
    print()
    return a, b, n 

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 gameOver(a,b):
    if fabs(a-b) > 2 and a > 9 and b > 9:
        return True
    if a == 11 and b < 10:
        return True
    if b == 11 and a < 10:
        return True

def simOneGame(proA,proB):
    scoreA, scoreB = 0, 0
    serving = "A"
    while not gameOver(scoreA,scoreB):
        if serving == "A":
            if random() < proA:
                scoreA += 1
            else:
                serving = "B"
        else:
            if random() < proB:
                scoreB += 1
            else:
                serving = "A"
    return scoreA, scoreB
    
def simNGames(n,proA,proB):
    winsA, winsB = 0, 0 
    for i in range(n):
        scoreA, scoreB = simOneGame(proA,proB)
        if scoreA > scoreB:
            winsA += 1
        else:
            winsB += 1
    return winsA, winsB

def main():
    printIntro()
    proA, proB, n = getInputs()
    winsA, winsB = simNGames(n,proA,proB)
    printSummary(winsA,winsB)
    
main()

 

posted @ 2019-05-15 17:31  康诚嘉士  阅读(651)  评论(0编辑  收藏  举报