战利品箱允许玩家使用真实货币购买获取虚拟物品的机会，包括角色装饰品和武器等。詹姆斯指出，Valve通过销售开启战利品箱的“钥匙”获得了数十亿美元的收入。在某些游戏中，开箱过程类似于玩老虎机，玩家看着转盘在各种物品间旋转后停止。
But even then, Tamriel Rebuilt was more of a Wild West in its infancy: a ragtag bunch of video game enthusiasts working mostly independently and without very much oversight. As the project has become more unified, it has meant a lot of turnover and a fair share of setbacks.
。关于这个话题，WPS官方版本下载提供了深入分析
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// 易错点4：栈空时要存-1（题目要求无更大值返回-1），而非直接存stack2.at(-1)（会得到undefined）