舉個例子，你買$100靠，成本100，最大損失100但是可賺無窮大。你賣$100靠可賺有限量，損失可無限量。

來源: rav 於 2025-01-26 10:52:21 [舊帖] [給我悄悄話] 本文已被閱讀：次

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