【问】C语言的两个问题

#include <conio.h>
       main()
       {
            int color;
            for(color=0;color<8;color++)
              {
                  textbackground(color);
                  cprintf("This is color %d\r\n",color);
                  printf("Press any key to continue!\n");
                  getch();
              }
     }

#include <conio.h>
main()
{

 int color;

 scanf("Please input the color you choose!",&color);
   textbackground(color);
   cprintf("This is color %d\r\n",color);
}