from random import random def printIntro(): #打印程序介绍信息 print("19信计1班23号刘春玲进行比赛分析结果:") 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)") def getInputs(): #获得程序运行参数 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: ")) return a, b, n def simNGames(n, probA, probB): # 进行N场比赛 winsA, winsB = 0, 0 for i in range(n): for j in range(7): #进行7局4胜的比赛 scoreA, scoreB = simOneGame(probA, probB) if scoreA > scoreB: winsA += 1 else: winsB += 1 return winsA, winsB def gameOver(a,b): #正常比赛结束 return a==11 or b==11 def gameOver2(a,b): #进行抢12比赛结束 if abs((a-b))>=2: return a,b def simOneGame(probA, probB): #进行一场比赛 scoreA, scoreB = 0, 0 #初始化AB的得分 serving = "A" while not gameOver(scoreA, scoreB): #用while循环来执行比赛 if scoreA==10 and scoreB==10: return(simtwoGame2(probA,probB)) if serving == "A": if random() < probA: ##用随机数生成胜负 scoreA += 1 else: serving="B" else: if random() < probB: scoreB += 1 else: serving="A" return scoreA, scoreB def simtwoGame2(probA,probB): scoreA,scoreB=10,10 serving = "A" while not gameOver2(scoreA, scoreB): if serving == "A": if random() < probA: scoreA += 1 else: serving="B" else: if random() < probB: scoreB += 1 else: serving="A" return scoreA, scoreB 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 main(): printIntro() probA, probB, n = getInputs() winsA, winsB = simNGames(n, probA, probB) printSummary(winsA, winsB) main()