python——筛子游戏

import random
 
def roll_dice(numbers = 3,points = None):
 print('----- 摇骰子 -----')
 if points is None:
  points = []
 while numbers > 0:
  point = random.randrange(1,7)
  points.append(point)
  numbers = numbers - 1
 return points
 
def roll_result(total):
 isBig = 11 <= total <=18
 isSmall = 3 <= total <= 10
 if isBig:
  return '大'
 elif isSmall:
  return '小'
 
def start_game():
 your_money = 1000
 while your_money > 0:
  print('----- 游戏开始 -----')
  choices = ['大','小']
  your_choice = input('请下注，大 or 小：')
  your_bet = input('下注金额：')
  if your_choice in choices:
   points = roll_dice()
   total = sum(points)
   youWin = your_choice == roll_result(total)
   if youWin:
    print('骰子点数：',points)
    print('恭喜，你赢了 {} 元，你现在有 {} 元本金'.format(your_bet,your_money + int(your_bet)))
    your_money = your_money + int(your_bet)
   else:
    print('骰子点数：',points)
    print('很遗憾，你输了 {} 元，你现在有 {} 元本金'.format(your_bet, your_money - int(your_bet)))
    your_money = your_money - int(your_bet)
  else:
   print('格式有误，请重新输入')
 else:
  print('游戏结束')
 
start_game()