Python文本游戏if-else逻辑异常：输入get命令误触发move分支问题

核心错误排查 #

你遇到的指令分支触发错误是因为条件语句的逻辑写法不符合Python规则：
你写的if tokens[0] == 'move' or 'Move'中，or运算符左右是独立的布尔判断项，非空字符串'Move'的布尔值永远为True，因此这个条件无论输入什么都会判定成立，永远走移动分支，不会触发拾取逻辑。
正确的条件写法可以二选一：

• 完整写两个判断：if tokens[0] == 'move' or tokens[0] == 'Move'
• 更简洁的大小写兼容写法：if tokens[0].lower() == 'move'，get的条件判断同理修改即可。

其他需要修复的功能问题 #

1. 房间字典中Laboratory的道具key是大写Item，和其他房间统一的小写item不一致，会导致读取该房间道具时报错，改为小写item即可
2. show_instructions函数没有返回值，调用时直接写show_instructions()即可，不要套print()，否则会额外打印无用的None
3. 输入单个单词（比如无参数的move/get）时，tokens[1]会触发索引越界报错，需要补充输入长度校验
4. 拾取道具后没有清空房间道具，会导致可以重复拾取同一个道具，拾取成功后可删除该房间的item字段或置空
5. 原代码存在缩进错误，Python对缩进敏感，需要补全所有函数内代码的缩进

修复后完整可运行代码 #

def show_instructions():
    print('Collect 8 items to win the game and defeat the beast')
    print('Move Commands: move North, move South, move West, move East, or Exit to leave the game')
    print('Pickup items: get item, ex. get sword\n')

def main():
    # 房间与道具字典
    rooms = {
        'Shed' : {'West': 'Well Room', 'item' : 'well room West of you'},
        'Well Room' : {'South' : 'Sewers', 'East' : 'Shed', 'item' : 'Healing-Potion'},
        'Sewers' : {'East' : 'Crawl Space','North' :'Well Room', 'item' : 'Armor'},
        'Crawl Space' : {'East' : 'Cavern', 'West' : 'Sewers','item' : 'Sword'},
        'Cavern' : {'South' : 'Dungeon Hall', 'West' : 'Crawl Space', 'item' : 'Shield'},
        'Dungeon Hall' : {'East' : 'Hidden Room', 'West' : 'War Room', 'North' : 'Cavern', 'item' : 'Sword-Enchantment'},
        'Hidden Room' : {'South' : 'Treasure Room', 'East' : 'Dungeon Hall', 'item' : 'Flame-Resistance-Potion'},
        'War Room' : {'West' : 'Laboratory', 'East' : 'Dungeon Hall', 'item' : 'Armor-Enchantment'},
        'Laboratory' : {'South' : 'Treasure Room', 'East' : 'War Room', 'item' : 'Enchantment-Table'},
        'Treasure Room' : {'item' : 'Dragon'}
    }
    directions = ['North','South','East','West']
    currentroom = 'Shed'
    inventory = []
    show_instructions()
    
    while currentroom != 'Exit':
        # 显示当前状态
        print('---------------------------')
        print('You are in the', currentroom)
        print('Inventory:', inventory)
        if 'item' in rooms[currentroom]:
            print('You see a', rooms[currentroom]['item'])
        print('---------------------------')
        
        # 胜利/失败判定
        if currentroom == 'Treasure Room':
            if len(inventory) < 8:
                print('You get eaten by the Dragon! Game Over.')
                break
            else:
                print('You slay the dragon and return to your boss victorious! You Win!')
                break
        
        # 读取用户输入
        c = input('What would you like to do?:\n').strip()
        # 退出逻辑
        if c == 'Exit':
            currentroom = 'Exit'
            continue
        
        tokens = c.split()
        # 输入合法性校验
        if len(tokens) < 2:
            print('Not a Valid Entry, please follow the command format')
            continue
        
        # 移动分支
        if tokens[0].lower() == 'move':
            if tokens[1] in directions:
                if tokens[1] in rooms[currentroom]:
                    currentroom = rooms[currentroom][tokens[1]]
                else:
                    print('You see a Wall')
            else:
                print('Not a Valid Direction')
        # 拾取分支
        elif tokens[0].lower() == 'get':
            target_item = ' '.join(tokens[1:])
            if 'item' in rooms[currentroom] and target_item == rooms[currentroom]['item']:
                inventory.append(target_item)
                print(f'You got {target_item}!')
                del rooms[currentroom]['item'] # 拾取后移除房间内道具
            else:
                print('Not a valid Item')
        else:
            print('Not a Valid Entry')

if __name__ == "__main__":
    main()

内容的提问来源于stack exchange，提问作者Coltin W