举个例子，你买$100靠，成本100，最大损失100但是可赚无穷大。你卖$100靠可赚有限量，损失可无限量。

来源: rav 于 2025-01-26 10:52:21 [旧帖] [给我悄悄话] 本文已被阅读：次

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