Question

我得到的代码应该拆分卡列表，然后比较卡属性，然后在它们之间移动卡，直到计算机或用户拥有0张卡为止。那是我在努力的地方，因为while循环不会中断，并且会发生列表索引错误。对不起，我是新来的。我很乐意回答任何问题，代码在这里：（很抱歉，很长。）在此先感谢。

我尝试返回值，并使用“ break”，但似乎没有任何作用。

编辑：感谢Engineero和John Gordan找到了问题！现在可以了！

def comparison(user_deck, comp_deck, x, num_of_cards, cards):

    while len(user_deck) -1 != 0 or len(comp_deck) -1 != 0 :   
      user_points = 0
      comp_points = 0
      x =  random.randint(-1,len(user_deck)-1)
      y =  random.randint(-1,len(comp_deck)-1)

      if x < num_of_cards:
        print(user_deck[x].name)
        print(user_deck[x].exercise, "- Exercise Levels")
        print(user_deck[x].intelligence, "- Intelligence Levels")
        print(user_deck[x].friendliness, "- Friendliness Levels")
        print(user_deck[x].drool, "- Drool Levels")
      class_comparision = input("Which class do you want to compare with?\n")
      ##continued for each attribute
      if class_comparision == "Exercise" or class_comparision == "exercise":
        print(comp_deck[y].name, "\nThis is the computer's card\n")
        print(comp_deck[y].exercise, "- Exercise Levels")
        print(comp_deck[y].friendliness, "- Friendliness Levels")
        print(comp_deck[y].intelligence, "- Intelligence Levels")
        print(comp_deck[y].drool, "- Drool Levels")
        if user_deck[x].exercise >= comp_deck[y].exercise:
          print("You have a higher exercise level!")
          user_points = user_points + 1
          user_deck.append(comp_deck[y])
          del comp_deck[y]
          print(len(user_deck), " This is how many cards you have!")
          print(len(comp_deck), " This is how many cards they have!\n")
        elif user_deck[x].exercise < comp_deck[y].exercise:
          print("You have a lower exercise level!")
          comp_points = comp_points + 1
          comp_deck.append(user_deck[x])
          del user_deck[x]
          print(len(user_deck), " This is how many cards you have!")
          print(len(comp_deck), " This is how many cards they have!\n")
       ##Until here

      elif len(user_deck) == 0 or len(comp_deck) == 0 :
        break
      else:
        print("Try again")
        comparison()   
    return(user_deck, comp_deck, num_of_cards, cards)
    endgame()

这是一个错误，我经历了以下过程：

Oliver

3 - Exercise Levels
78 - Intelligence Levels
7 - Friendliness Levels
6 - Drool Levels
Which class do you want to compare with?
intelligence
George

This is the computer's card

5 - Exercise Levels
4 - Friendliness Levels
32 - Intelligence Levels
9 - Drool Levels
You have a higher Intelligence level!
3  This is how many cards you have!
1  This is how many cards they have!

George

5 - Exercise Levels
32 - Intelligence Levels
4 - Friendliness Levels
9 - Drool Levels
Which class do you want to compare with?
drool
Harry

This is the computer's card

5 - Exercise Levels
10 - Friendliness Levels
6 - Intelligence Levels
10 - Drool Levels
You have a lower drool level!
4  This is how many cards you have!
0  This is how many cards they have!

Harry

5 - Exercise Levels
6 - Intelligence Levels
10 - Friendliness Levels
10 - Drool Levels
Which class do you want to compare with?
drool
Traceback (most recent call last):
  File "main.py", line 207, in <module>
    main()
  File "main.py", line 202, in main
    initialisation()
  File "main.py", line 191, in initialisation
    game()
  File "main.py", line 50, in game
    assign_cards(num_of_cards)
  File "main.py", line 75, in assign_cards
    comparison(user_deck, comp_deck, x, num_of_cards, cards)
  File "main.py", line 160, in comparison
    print(comp_deck[y].name, "\nThis is the computer's card\n")
IndexError: list index out of range

这是新代码：

while len(user_deck) != 0 and len(comp_deck) != 0 :
      user_points = 0
      comp_points = 0
      x =  random.randint(-1,len(user_deck)-1)
      y =  random.randint(-1,len(comp_deck)-1)

      if x < num_of_cards:
        print(user_deck[x].name)
        print(user_deck[x].exercise, "- Exercise Levels")
        print(user_deck[x].intelligence, "- Intelligence Levels")
        print(user_deck[x].friendliness, "- Friendliness Levels")
        print(user_deck[x].drool, "- Drool Levels")
      class_comparision = input("Which class do you want to compare with?\n")
      if class_comparision == "Exercise" or class_comparision == "exercise":
        print(comp_deck[y].name, "\nThis is the computer's card\n")
        print(comp_deck[y].exercise, "- Exercise Levels")
        print(comp_deck[y].friendliness, "- Friendliness Levels")
        print(comp_deck[y].intelligence, "- Intelligence Levels")
        print(comp_deck[y].drool, "- Drool Levels")
        ##Repeated for each attribute
        if user_deck[x].exercise >= comp_deck[y].exercise:
          print("You have a higher exercise level!")
          user_points = user_points + 1
          user_deck.append(comp_deck[y])
          del comp_deck[y]
          print(len(user_deck), " This is how many cards you have!")
          print(len(comp_deck), " This is how many cards they have!\n")
        elif user_deck[x].exercise < comp_deck[y].exercise:
          print("You have a lower exercise level!")
          comp_points = comp_points + 1
          comp_deck.append(user_deck[x])
          del user_deck[x]
          print(len(user_deck), " This is how many cards you have!")
          print(len(comp_deck), " This is how many cards they have!\n")
          ##Until here

Answer 1

netstandard2.0递归调用自己（并且不带任何参数）；循环应该解决这个问题。

如何结束这个while循环，因为它会不断重复直到出现列表索引错误

1 个答案: