#define UP 18432
#define DOWN 20480
#define LEFT 19200
#define RIGHT 19712
#include <stdio.h>
#include <conio.h>
int main()
{
   int key,x,y;
    x=0,y=0;
        while((key=bioskey(0))){
          switch(key){
     case DOWN: {clrscr();++y;if(y>25) y=25;gotoxy(x,y);printf(\"%c\",2);break;}
     case UP:{clrscr();--y;if(y<0) y=0;gotoxy(x,y);printf(\"%c\",2);break;}
     case RIGHT:{clrscr();++x;if(x>80) x=80;gotoxy(x,y);printf(\"%c\",2);break;}
     case LEFT:{clrscr();--x;if(x<0) x=0;gotoxy(x,y);printf(\"%c\",2);break;}
     default:break;
          }
    }
   return 0;

}

如果脸在第一行的非最左边点上，会自动回到最左边，怎么处理？以1，1开头也是这样的