如何在excel中强制使用4位数？

Question

我有一个很长的真值表,二进制列显示如下:

A   +   B   =   S   BINARY
0   +   0   =   0   0
0   +   1   =   1   1
0   +   2   =   2   10
0   +   3   =   3   11
0   +   4   =   4   100
0   +   5   =   5   101
0   +   6   =   6   110
0   +   7   =   7   111
0   +   8   =   8   1000
0   +   9   =   9   1001
0   +   10  =   10  1010
0   +   11  =   11  1011
0   +   12  =   12  1100
0   +   13  =   13  1101
0   +   14  =   14  1110
0   +   15  =   15  1111

BINARY列在哪里 =DEC2BIN(S)

我需要强制二进制值始终有4位数.那么0 = 0000,3 = 0011等等.我如何在Excel中执行此操作？

解: =DEC2BIN(S,6)

Answer 1

而不是填充列S:

= A1 + B1

看1到15,使用:

= DEC2BIN(A1 + B1,4)将前导零保持为4位二进制格式.