括號裏麵是加法，本來沒有優先權。有了括弧，所以可以把它們加一起啊。然後其它就是乘除，一樣優先權，得按照從左到右的順序

來源: 桃花源裏人家於 2025-05-29 15:27:44 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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