乘法交換律. AB=BA。AB% = AB/100 = BA/100 = BA%，文字的作用就是蒙人

來源: 湖西於 2025-09-06 11:32:56 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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乘法交換律. A*B=B*A。A*B% = A*B/100 = B*A/100 = B*A%，文字的作用就是蒙人