UCHAR b = 0; do{ ... }while(--b); // или ++
for(b=0;b<=255;b++)document.write(b);
byte b = 0; do Console.WriteLine(b++); while(b);
byte b = 0; do Console.WriteLine(b); while(++b);
static bool print(byte b) { Console.WriteLine(b); return true; } static void Main(string[] args) { for (byte b = 0; (print(b++)) && (b != 0); ); }