from random import random
def printInfo():
    print("這個程式模擬兩個選手A和B的乒乓比賽")
    print("程式執行需要A和B的能力值（以0到1之間的小數表示）")
def getInputs():
    a = eval(input("請輸入選手A的能力值(0-1): "))
    b = eval(input("請輸入選手B的能力值(0-1): "))
    n = eval(input("模擬比賽的場次: "))
    return a, b, n
def simNGames(n, probA, probB):
    winsA, winsB 
 
= 0, 0
    for i in range(n):
        scoreA, scoreB = simOneGame(probA, probB)
        if scoreA > scoreB:
            winsA += 1
        else:
            winsB += 1
    return winsA, winsB
def gameOver(a,b):
    if a>=10 and b>=10:
         if abs(a-b)==2:
             return 1
    elif a<10 and
 
 b<10:
         if a==11 or b==11:
             return 1
    else:
         return 0
def simOneGame(probA,probB):
    scoreA,scoreB=0,0
    serving="A"
    while not gameOver(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("競技分析開始，一共模擬{}場比賽".format(n))
     print("選手A獲勝{}場比賽，佔比{:0.1%}".format(winsA,winsA/n))
     print("選手B獲勝{}場比賽，佔比{:0.1%}".format(winsB,winsB/n))
def main():
    printInfo()
    probA,probB,n=getInputs()
    winsA,winsB=simNGames(n,probA,probB)
    printSummary(winsA,winsB)
main()
python3: input("please input any key to exit!")