逐字节打印成二进制:

voidprint_char_to_binary(charchr){for(inti=7;i>=0;i--){charbit=(chr>>i)&1;printf("%d",bit);}printf("\n");}intmain(){chardata[]={0x12,0x3a,0xff};intlen=3;for(inti=0;i<len;i++){print_char_to_binary(data[i]);}}