预测球队比赛成绩

 1 from random import random
 2 def printIntro():
 3     print("这个程序模拟两个选手A和B的羽毛球比赛（学号3017）")
 4     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）")
 5 def getInputs():
 6     a = eval(input("请输入选手A的能力值(0-1): "))
 7     b = eval(input("请输入选手B的能力值(0-1): "))
 8     n = eval(input("模拟比赛的场次: "))
 9     return a, b, n
10 def simNGames(n, probA, probB):
11     winsA, winsB = 0, 0
12     for i in range(n):
13         scoreA, scoreB = simOneGame(probA, probB)
14         if scoreA > scoreB:
15             winsA += 1
16         else:
17             winsB += 1
18     return winsA, winsB
19 def gameOver(a,b):
20     if(a>=20 or b>=20):
21         if(abs(a-b)==2 and a<=29 and b<=29):
22             return True
23         else:
24             return a==30 or b==30
25     else:
26         return False
27 def simOneGame(probA, probB):
28     scoreA, scoreB = 0, 0
29     serving = "A"
30     while not gameOver(scoreA, scoreB):
31         if serving == "A":
32             if random() < probA:
33                 scoreA += 1
34             else:
35                 serving="B"
36         else:
37             if random() < probB:
38                 scoreB += 1
39             else:
40                 serving="A"
41     return scoreA, scoreB
42 def printSummary(winsA, winsB):
43     n = winsA + winsB
44     print("竞技分析开始，共模拟{}场比赛".format(n))
45     print("选手A获胜{}场比赛，占比{:0.1%}".format(winsA, winsA/n))
46     print("选手B获胜{}场比赛，占比{:0.1%}".format(winsB, winsB/n))
47 def main():
48     printIntro()
49     probA, probB, n = getInputs()
50     winsA, winsB = simNGames(n, probA, probB)
51     printSummary(winsA, winsB)
52 main()