always buy put first, and then decide on call later.

来源: 三心三意于 2025-05-15 11:27:08 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

回答: 我做了相似的操作，卖的CALL亏了只好赎回，不过PUT还留着由 GandalfOld 于 2025-05-15 11:19:45

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