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我需要 'bc' 来划分一个数字，不仅给我发言权，还给我余数。例如，如果我做 '5/2'，'bc' 会给我 '2'。我真的想要像'2.5'这样的东西
也许这甚至不可能？
scale = 20
它设置小数位数。
$ bc bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 355/113 3 scale=20 355/113 3.14159292035398230088 quit $