stdio文件常用函数

#include <conio.h>

int main()

{

int gdriver=DETECT,gmode,errorcode;

int midx,midy;

initgraph(&gdriver,&gmode,);

errorcode=graphresult();

if (errorcode!=grOk)

{

printf("Graphics error: %s",grapherrormsg(errorcode));

printf("Press any key to halt:");

getch();

exit(1);

}

midx=getmaxx()/2;

midy=getmaxy()/2;

setcolor(getmaxcolor());

settextjustify(CENTER_TEXT,CENTER_TEXT);

outtextxy(midx,midy,"press any key to clear the screen:");

getch();

cleardevice();

outtextxy(midx,midy,"press any key to quit:");

getch();

closegraph();

return 0;