traceback (most recent call last): file "/users/yinman/desktop/python和计网/习题.py", line 312, in <module> monty_hall_simulation(10000) file "/users/yinman/desktop/python和计网/习题.py", line 298, in monty_hall_simulation switch_door = [0,1,2].remove(player_choice).remove(open_door)[0] attributeerror: 'nonetype' object has no attribute 'remove' 有什么错误提示

错误提示表明在执行 `monty_hall_simulation(10000)` 函数时，出现了一个 `AttributeError`。具体来说，错误发生在以下这行代码： ```python switch_door = [0,1,2].remove(player_choice).remove(open_door)[0] ``` 问题出在 `.remove()` 方法上。`list.remove(x)` 方法会从列表中移除第一个值为 `x` 的元素，但它不会返回新的列表，而是返回 `None`。因此，当你尝试对 `None` 调用 `.remove()` 方法时，就会引发 `AttributeError`。 要修复这个问题，你可以先创建一个新的列表，然后使用 `remove()` 方法来移除元素。以下是修正后的代码示例： ```python def monty_hall_simulation(num_trials): for _ in range(num_trials): player_choice = random.randint(0, 2) prize_door = random.randint(0, 2) # Host opens a door that is neither the player's choice nor the prize door open_door = random.choice([i for i in range(3) if i != player_choice and i != prize_door]) # Create a new list without the player's choice and the opened door remaining_doors = [0, 1, 2] remaining_doors.remove(player_choice) remaining_doors.remove(open_door) # The only remaining door is the switch door switch_door = remaining_doors[0] # Check if switching wins or not if switch_door == prize_door: win_count += 1 print(f"Switching wins {win_count} out of {num_trials} trials.") # Example usage monty_hall_simulation(10000) ``` 在这个修正后的代码中，我们首先创建了一个新的列表 `remaining_doors`，然后依次移除玩家选择的门和主持人打开的门。最后剩下的门就是切换的门。这样可以避免 `AttributeError` 并正确实现蒙特霍尔问题的逻辑。 [2024-11-27 19:10:59 | AI写代码神器 | 517点数解答]