int main()
{
int k, i, p, q, dx, dy, dx1, dy1;
static char fold[1 << ORDER];
gr_on(); gr_window(0, 0, 640, 400, 1, 0);
move(200, 140);
dx = 0; dy = 2; draw_rel(3 * dx, 3 * dy); p = 0;
for (k = 1; k <= ORDER; k++) {
fold[p] = LEFT; q = 2 * p;
for (i = p; i <= q; i++) {
switch (fold[q - i]) {
case RIGHT:
fold[i] = LEFT; dx1 = -dy; dy1 = dx;
break;
case LEFT:
fold[i] = RIGHT; dx1 = dy; dy1 = -dx;
break;
}
draw_rel(dx + dx1, dy + dy1);
draw_rel(3 * dx1, 3 * dy1);
dx = dx1; dy = dy1;
}
p = q + 1;
}
hitanykey();
return EXIT_SUCCESS;
}
int main()
{
gr_on(); gr_window(0, 0, 2, 1, 1, 0);
for (a = 0; a < 6; a++) {
costbl[a] = cos(a * PI / 3);
sintbl[a] = sin(a * PI / 3);
}
move(0, 0); d = 2; a = 0; koch();
hitanykey();
return EXIT_SUCCESS;
}
int main()
{
int i;
gr_on();
for (i = 0; i < 100; i++)
gr_ellipse(rand() % XMAX, rand() % YMAX,
rand() % 100, rand() % 100,
rand() % WHITE + 1);
hitanykey();
return EXIT_SUCCESS;
}
int main()
{
int i, order;
printf("位数 = "); scanf("%d", &order);
gr_on(); gr_window(0, 0, 1, 1, 1, 0);
h = 1;
for (i = 2; i <= order; i++) h = h / (2 + h);
move(0, 0); rul(order);
hitanykey();
return EXIT_SUCCESS;
}
void
put_helpscreen(int keyc, menukey_t *keyv)
{
int k;
int l;
int winline;
WINDOW *helpscreen;
winline = LINES - (keyc + 5);
if(winline < 0)
winline = 0;
helpscreen = newwin(keyc + 4, 29, winline, COLS - 30);
keypad(helpscreen, TRUE);
wattron(helpscreen, A_REVERSE);
wmove(helpscreen, 0, 0);
waddstr(helpscreen, " --------------------------- ");
wmove(helpscreen, 1, 0);
waddstr(helpscreen, "| Menu Help |");
wmove(helpscreen, 2, 0);
waddstr(helpscreen, "| |");
l = 3;
for(k = 0; k < keyc + 1; k++) {
if(keyv[k].text == NULL)
continue;
wmove(helpscreen, l, 0);
waddstr(helpscreen, keyv[k].text);
l++;
}
wmove(helpscreen, l, 0);
waddstr(helpscreen, " --------------------------- ");
wrefresh(helpscreen);
wattroff(helpscreen, A_REVERSE);
hitanykey();
wclear(helpscreen);
wrefresh(helpscreen);
delwin(helpscreen);
}
