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Turbo C 2.0、Borland C++库函数及用例(29) 程序例:/* findfirst example */#include <stdio.h>
#include <dir.h>int main(void)
{
struct ffblk ffblk; int done;
printf("Directory listing of *.*\n");
done = findfirst("*.*",&ffblk,0);
while (!done)
{
printf(" %s\n", ffblk.ff_name);
done = findnext(&ffblk);
}
return 0;
}
函数名: findnext
功 能: 搜索磁盘目录; 取得下一个匹配的findfirst模式的文件
用 法: int findnext(struct ffblk *ffblk);
程序例:
/* findnext example */#include <stdio.h>
#include <dir.h>int main(void)
{
struct ffblk ffblk;
int done;
printf("Directory listing of *.*\n"); done = findfirst("*.*",&ffblk,0);
while (!done)
{
printf(" %s\n", ffblk.ff_name);
done = findnext(&ffblk);
}
return 0;
}
函数名: floodfill
功 能: 填充一个有界区域
用 法: void far floodfill(int x, int y, int border);
程序例:#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>int main(void)
{
/* request auto detection */
int gdriver = DETECT, gmode, errorcode; int maxx, maxy; /* initialize graphics, local variables */
initgraph(&gdriver, &gmode, ""); /* read result of initialization */
errorcode = graphresult();
if (errorcode != grOk)
/* an error occurred */
{
printf("Graphics error: %s\n",
grapherrormsg(errorcode));
printf("Press any key to halt:");
getch(); exit(1);
/* terminate with an error code */
}
maxx = getmaxx();
maxy = getmaxy(); /* select drawing color */
setcolor(getmaxcolor()); /* select fill color */
setfillstyle(SOLID_FILL, getmaxcolor()); /* draw a border around the screen */
rectangle(0, 0, maxx, maxy); /* draw some circles */
circle(maxx / 3, maxy /2, 50);
circle(maxx / 2, 20, 100);
circle(maxx-20, maxy-50, 75);
circle(20, maxy-20, 25); /* wait for a key */
getch(); /* fill in bounded region */
floodfill(2, 2, getmaxcolor()); /* clean up */
getch(); closegraph();
return 0;
}
函数名: floor
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