int c[] = { '1','2','3'};
char ccc[] = "123";
main()
{
   cprintf("%c\r\n", ccc[0]);
   cprintf("%c\r\n", ccc[1]);
   cprintf("%c\r\n", ccc[2]);
   cprintf("%c\r\n", c[0]);
   cprintf("%c\r\n", c[1]);
   cprintf("%c\r\n", c[2]);
}
