[已解决]概率问题，小白求解

Ddaniel1177

买彩票，然后问至少要买多少张才能至少中三个白球。
这是我目前的代码

1. import random
   
2. 
   
3. print("Buy a ticket with 5 white balls [not identical, between 1-69] and 1 red ball [between 1-26]")
   
4. mywhite = random.sample(range(1, 69), 5)
   
5. myred = random.randint(1, 26)
   
6. 
   
7. white = [32, 35, 40, 52, 54]
   
8. red = 1
   
9. print("Your selection for white balls are: ", *mywhite )
   
10. print("Your selection for red balls is: ", myred )
    
11. print("Winning numbers for white balls：", *white)
    
12. print("Winning number for red ball：", red)
    
13. matchwhite = 0
    
14. for i, j in zip(mywhite, white):
    
15.     if i == j:
    
16.         matchwhite += 1
    
17. matchred = 1 if myred == red else 0
    
18. if matchwhite == 0 and matchred ==0:
    
19.     print ("No matching. Thanks for your contribution!")
    
20. elif matchred:
    
21.     if matchwhite == 0:
    
22.         print ("Matching only the red ball: $4")
    
23.     elif matchwhite == 1:
    
24.         print ("Matching the red ball and one white ball: $4")
    
25.     elif matchwhite == 2:
    
26.         print ("Matching the red ball and two white balls: $7")
    
27.     elif matchwhite == 3:
    
28.         print ("Matching the red ball and three white balls: $100")
    
29.     elif matchwhite == 4:
    
30.         print ("Matching the red ball and four white balls: $10,000")
    
31.     else:
    
32.         print ("Matching five white balls and the red ball: Jackpot")
    
33. else:
    
34.     if matchwhite == 3:
    
35.         print ("Matching three white balls: $7")
    
36.     elif matchwhite == 4:
    
37.         print ("Matching four white balls: $100")
    
38.     else:
    
39.         print ("Matching five white balls: $1,000,000")
    
40. 
    
41. 
    

复制代码

求大佬能帮我解答一下，感激不尽！！

最佳答案

月排行榜 / 总排行榜

傻眼貓咪

2021-9-12 19:10:14

1. import random
   
2. 
   
3. def game(myWhite, myRed):
   
4.     """
   
5.     Buy a ticket with 5 white balls [not identical, between 1-69]
   
6.     and 1 red ball [between 1-26]
   
7.     """
   
8.     white = set(random.sample(range(1, 70), 5))
   
9.     red = random.choice(range(1, 27))
   
10.     # string = {1: "first", 2: "second", 3: "third", 4: "forth", 5: "fiveth"}
    
11.     # myWhite = [int(input(f"Your {string[i]} number for white balls\n")) for i in range(1, 6)]
    
12.     # myRed = int(input("Your number for red ball\n"))
    
13. 
    
14.     # print("Your selection for white balls are: ", *myWhite )
    
15.     # print("Your selection for red balls is: ", myRed )
    
16.     # print("Winning numbers for white balls：", *white)
    
17.     # print("Winning number for red ball：", red)
    
18. 
    
19.     myWhite = set(myWhite)
    
20.     if myRed == red:
    
21.         return len(myWhite & white) >= 3
    
22.         # if not (myWhite & white):
    
23.         #     print("Matching only the red ball: $4")
    
24.         # elif len(myWhite & white) == 1:
    
25.         #     print("Matching the red ball and one white ball: $4")
    
26.         # elif len(myWhite & white) == 2:
    
27.         #     print("Matching the red ball and two white balls: $7")
    
28.         # elif len(myWhite & white) == 3:
    
29.         #     print("Matching the red ball and three white balls: $100")
    
30.         # elif len(myWhite & white) == 4:
    
31.         #     print("Matching the red ball and four white balls: $10,000")
    
32.         # elif len(myWhite & white) == 5:
    
33.         #     print("Matching five white balls and the red ball: Jackpot")
    
34.     elif myRed != red:
    
35.         return False
    
36.         # if not (myWhite & white):
    
37.         #     print("No matching. Thanks for your contribution!")
    
38.         # elif len(myWhite & white) == 3:
    
39.         #     print("Matching three white balls: $7")
    
40.         # elif len(myWhite & white) == 4:
    
41.         #     print("Matching four white balls: $100")
    
42.         # elif len(myWhite & white) == 5:
    
43.         #     print("Matching five white balls: $1,000,000")
    
44.    
    
45. if __name__ == "__main__":
    
46.     # print(game.__doc__)
    
47.     myWhite = [32, 35, 40, 52, 54]
    
48.     myRed = 1
    
49.     count = 0
    
50.     while not game(myWhite, myRed):
    
51.         count += 1
    
52.     print(count)

复制代码

跳转到最佳答案楼层

傻眼貓咪

1. import random
   
2. 
   
3. def game(myWhite, myRed):
   
4.     """
   
5.     Buy a ticket with 5 white balls [not identical, between 1-69]
   
6.     and 1 red ball [between 1-26]
   
7.     """
   
8.     white = set(random.sample(range(1, 70), 5))
   
9.     red = random.choice(range(1, 27))
   
10.     # string = {1: "first", 2: "second", 3: "third", 4: "forth", 5: "fiveth"}
    
11.     # myWhite = [int(input(f"Your {string[i]} number for white balls\n")) for i in range(1, 6)]
    
12.     # myRed = int(input("Your number for red ball\n"))
    
13. 
    
14.     # print("Your selection for white balls are: ", *myWhite )
    
15.     # print("Your selection for red balls is: ", myRed )
    
16.     # print("Winning numbers for white balls：", *white)
    
17.     # print("Winning number for red ball：", red)
    
18. 
    
19.     myWhite = set(myWhite)
    
20.     if myRed == red:
    
21.         return len(myWhite & white) >= 3
    
22.         # if not (myWhite & white):
    
23.         #     print("Matching only the red ball: $4")
    
24.         # elif len(myWhite & white) == 1:
    
25.         #     print("Matching the red ball and one white ball: $4")
    
26.         # elif len(myWhite & white) == 2:
    
27.         #     print("Matching the red ball and two white balls: $7")
    
28.         # elif len(myWhite & white) == 3:
    
29.         #     print("Matching the red ball and three white balls: $100")
    
30.         # elif len(myWhite & white) == 4:
    
31.         #     print("Matching the red ball and four white balls: $10,000")
    
32.         # elif len(myWhite & white) == 5:
    
33.         #     print("Matching five white balls and the red ball: Jackpot")
    
34.     elif myRed != red:
    
35.         return False
    
36.         # if not (myWhite & white):
    
37.         #     print("No matching. Thanks for your contribution!")
    
38.         # elif len(myWhite & white) == 3:
    
39.         #     print("Matching three white balls: $7")
    
40.         # elif len(myWhite & white) == 4:
    
41.         #     print("Matching four white balls: $100")
    
42.         # elif len(myWhite & white) == 5:
    
43.         #     print("Matching five white balls: $1,000,000")
    
44.    
    
45. if __name__ == "__main__":
    
46.     # print(game.__doc__)
    
47.     myWhite = [32, 35, 40, 52, 54]
    
48.     myRed = 1
    
49.     count = 0
    
50.     while not game(myWhite, myRed):
    
51.         count += 1
    
52.     print(count)

复制代码

傻眼貓咪

你該不會是想要用代碼運算答案去買樂透吧？兄弟，這和你當初題目設定不一樣哦，那些沒有中獎的不用打印？只算出次數？

Ddaniel1177

傻眼貓咪 发表于 2021-9-12 19:22
你該不會是想要用代碼運算答案去買樂透吧？兄弟，這和你當初題目設定不一樣哦，那些沒有中獎的不用 ...

哈哈哈，这是一个题啊，只是附加的问题。
我如果想买彩票，我就会问全中该怎么算了

Ddaniel1177

傻眼貓咪 发表于 2021-9-12 19:22
你該不會是想要用代碼運算答案去買樂透吧？兄弟，這和你當初題目設定不一樣哦，那些沒有中獎的不用 ...

大佬，为啥我把你代码的最后一段放进我的里面，它就开始一直循环啊。难道是要出现三次中3个白球的情况才停下来吗？有什么方法可以直接得出结果吗？

傻眼貓咪

Ddaniel1177 发表于 2021-9-12 19:45
大佬，为啥我把你代码的最后一段放进我的里面，它就开始一直循环啊。难道是要出现三次中3个白球的情况才 ...

1. 用我的代碼就不會出現無限循環，你把我的後半段代碼放進別人的前半段代碼當然有問題咯，看來我的代碼並不是你想要的啊。
2. 你用我的代碼你會發現，只求中獎三顆白球以上的機率不高啊，幸運可能 300 次以內，否則上千上萬次數，你確定全部結果要打印？

不好意思兄弟，我的 Python 技術不是很厲害，你的題目我無法解了，你看看有沒有其他大神可以幫助你

Ddaniel1177

我运行了一下你的代码，但是为什么其它的都不显示，只显示一个次数啊

傻眼貓咪

Ddaniel1177 发表于 2021-9-12 20:30
我运行了一下你的代码，但是为什么其它的都不显示，只显示一个次数啊

你上面要求中獎三顆白色球的次數啊，不是嗎？

兄弟你先想清楚，你真正想要什麼，問題必須要有邏輯，有條有理，不然別人很難解決你的問題啊～
大家的代碼只是參考，你必須要了解其原理啊，然後試試自己動手寫吧

blahblahfc

盲猜应该买 69*68*67 = 314364 张