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()