FD小工具代码－hex2bin

来源：互联网发布：再生龙安装linux 编辑：程序博客网时间：2024/05/16 05:59

为了某件事写了个小工具，顺手扔进FD工具箱中。

/*输入十六进制，输出二进制*/#include <ctype.h>#include <stdio.h>#define H0 "0000 "#define H1 "0001 "#define H2 "0010 "#define H3 "0011 "#define H4 "0100 "#define H5 "0101 "#define H6 "0110 "#define H7 "0111 "#define H8 "1000 "#define H9 "1001 "#define Ha "1010 "#define Hb "1011 "#define Hc "1100 "#define Hd "1101 "#define He "1110 "#define Hf "1111 "void hex2bin(char string[]){for(;*string != 0;string++){char temp = toupper(*string);switch (temp){case '0':printf(H0);break;case '1':printf(H1);break;case '2':printf(H2);break;case '3':printf(H3);break;case '4':printf(H4);break;case '5':printf(H5);break;case '6':printf(H6);break;case '7':printf(H7);break;case '8':printf(H8);break;case '9':printf(H9);break;case 'A':printf(Ha);break;case 'B':printf(Hb);break;case 'C':printf(Hc);break;case 'D':printf(Hd);break;case 'E':printf(He);break;case 'F':printf(Hf);break;default:printf("ERR");return;break;}}}int main(int argc, char **argv){for(int i = 1; i <argc; i++){printf("0x%s: ", argv[i]);hex2bin(argv[i]);puts("");}return 0;}

输出示例：

bogon:desktop firedom$ ./FDhex2bin 6000 1234 fdfdfdfd abcdefg

0x6000: 0110 0000 0000 0000

0x1234: 0001 0010 0011 0100

0xfdfdfdfd: 1111 1101 1111 1101 1111 1101 1111 1101

0xabcdefg: 1010 1011 1100 1101 1110 1111 ERR

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