中国南方航空招聘信息:c语言程序设计

都是库函数了！今天问这问题的人怎么这么多……
函数名: bar
功 能: 画一个二维条形图
用 法: void far bar(int left, int top, int right, int bottom);
程序例:

#include
#include
#include
#include

int main(void)
{
/* request auto detection */
int gdriver = DETECT, gmode, errorcode;
int midx, midy, i;

/* initialize graphics and 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 */
}

midx = getmaxx() / 2;
midy = getmaxy() / 2;

/* loop through the fill patterns */
for (i=SOLID_FILL; i
{
/* set the fill style */
setfillstyle(i, getmaxcolor());

/* draw the bar */
bar(midx-50, midy-50, midx+50,
midy+50);

getch();
}

/* clean up */
closegraph();
return 0;
}
————————————————
函数名: circle
功 能: 在给定半径以(x, y)为圆心画圆
用 法: void far circle(int x, int y, int radius);
程序例:

#include
#include
#include
#include

int main(void)
{
/* request auto detection */
int gdriver = DETECT, gmode, errorcode;
int midx, midy;
int radius = 100;

/* initialize graphics and 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 */
}

midx = getmaxx() / 2;
midy = getmaxy() / 2;
setcolor(getmaxcolor());

/* draw the circle */
circle(midx, midy, radius);

/* clean up */
getch();
closegraph();
return 0;
}
————————————————
函数名: ellipse
功 能: 画一椭圆
用 法: void far ellipse(int x, int y, int stangle, int endangle,
int xradius, int yradius);
程序例:

#include
#include
#include
#include

int main(void)
{
/* request auto detection */
int gdriver = DETECT, gmode, errorcode;
int midx, midy;
int stangle = 0, endangle = 360;
int xradius = 100, yradius = 50;

/* 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 */
}

midx = getmaxx() / 2;
midy = getmaxy() / 2;
setcolor(getmaxcolor());

/* draw ellipse */
ellipse(midx, midy, stangle, endangle,
xradius, yradius);

/* clean up */
getch();
closegraph();
return 0;
}
——————————————————————
函数名：fillellipse
功能：画一填充的椭圆
用法：void far fillellipse(int x,int y,int xradius,int yradius);

画一填充椭圆。
以(x,y)为中心，以xradius和yradius为水平和垂直半轴，用当前颜色画边线，画一椭圆，用当前填充颜色和填充方式填充。