比赛模拟：乒乓球比赛规则 

 1 import random 
 2 from math import *
 3 def printIntro():#打印程序的介绍性信息
 4     print("模拟乒乓球竞赛")
 5     print("学号12")
 6     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）")
 7     
 8  
 9 def getInputs():#获得用户输入的参数
10     a = eval(input("请输入选手A的能力值（0-1）: "))
11     b = eval(input("请输入选手B的能力值（0-1）: "))
12     h= eval(input("请输入一场要打几局:"))
13     n = eval(input("模拟比赛的场次: "))
14     return a, b, h,n
15  
16 def printSummary(winsA, winsB):
17     n = winsA + winsB
18     print("竞技分析开始， 共模拟{}场比赛".format(n))
19     print("选手A获胜{}场比赛， 占比{:0.1%}".format(winsA, winsA/n))
20     print("选手B获胜{}场比赛， 占比{:0.1%}".format(winsB, winsB/n))
21 def gameOver(scoreA, scoreB):
22      g=scoreA-scoreB
23      if (abs(g)==2 and  scoreA> 10 and scoreB> 10) or (g> 0 and scoreA==11) or (g<0 and scoreB==11):
24         return scoreA,scoreB
25         
26     
27 def simOneGame(probA, probB,h):#模拟一场比赛
28     for i in range(h): #模拟七局四胜或五局三胜为一场
29         serving = "A"
30         roundA =roundB=0  #分别为队伍A和B的赢得的比赛的局次
31         scoreA, scoreB = 0, 0
32         while not gameOver(scoreA, scoreB): #模拟一局比赛
33             roundA=roundB=0
34             if serving == "A":
35                 if random.random() < probA:
36                     scoreA += 1             
37                 else:
38                     serving = "B"
39             else:
40                 if random.random() < probB:
41                     scoreB += 1
42               
43                 else:
44                     serving = "A"
45         if scoreA>scoreB:
46             roundA += 1
47         else:
48             roundB += 1
49     return roundA,roundB
50     
51  
52 def simNGames(n ,probA, probB,h):#利用A，B的的能力值模拟N场比赛
53     winsA, winsB = 0, 0
54     for i in range(n):
55         roundA , roundB = simOneGame(probA, probB,h)
56         if roundA >roundB:
57             winsA += 1
58         else:
59             winsB += 1
60     return winsA, winsB
61  
62 def main():
63     printIntro()
64     probA, probB, h,n = getInputs()#分别为队伍A和B的能力值，一场的局数，比赛的场次
65     winsA, winsB = simNGames(n, probA, probB,h)#分别为队伍A和B的赢得的比赛的场次
66     printSummary(winsA, winsB)
67     if h==7:
68         print('此次模拟单打淘汰赛')
69     else:
70         print('此次模拟双打淘汰赛或者是团体淘汰赛')
71 main()

posted @ 2020-11-16 20:04  17wzl  阅读(200)  评论(0)    收藏  举报