Question

#include<graphics.h>哪里有错啊

#include<graphics.h>

#include<conio.h>

#include<stdio.h>

#include<stdlib.h>

#include<alloc.h>

#define ESC 0x1b /*ESC的ASCII码，十六进制数*/

void InstallGraph(void); /*图形初始化函数的声明*/

void DrawGun(void); /*画发射架函数的声明*/

void DrawPlan(void); /*画火箭函数的声明*/

void DrawStar(void); /*画星函数的声明*/

void *buf; /*全局变量，用于存储火箭的图像*/

int x0=300; /*以下是火箭的位置初始化参数*/

int y0=340;

int width1=5;

int width2=20;

int height=25;

int y1=8;

int y2=15;

int y3=23;

int y4=38;

main()

{

int size;

int i=0;

int key;

int station;

InstallGraph();

setbkcolor(BLACK); /*设置背景颜色*/

cleardevice();

setcolor(BLUE); /*设置字的颜色*/

outtextxy(80,100,"Ready!...Any key to SET OFF !!!");

DrawGun();

getch();

cleardevice();

DrawGun();

DrawPlan();

DrawStar();

setcolor(LIGHTRED);

do{putimage(x0-width2,y0-height-3*width1-i,buf,XOR_PUT);/*主循环开始，用于移动火箭，方法是用异或方式在屏幕上连续画出火箭的图像，每画一次，新图像和原来的位置相差两个像素点。这个值越大，飞行速度越快*/

i+=2;

putimage(x0-width2,y0-height-3*width1-i,buf,XOR_PUT);
key=getch();

if(y0-height-3*width1-i==0)

outtextxy(60,100,"Successfully!!! Press ESC to quit");

if(key==ESC)

{

if(y0-height-3*width1-i>0){

cleardevice();

outtextxy(100,100,"Failue. What did you do?");

outtextxy(130,300,"Press any key to quit.");

getch();

}

}

}

while(key!=ESC);

free(buf);

closegraph();

return 0; }

void InstallGraph(void) /*图形初始化函数*/

{

int grdriver=DETECT;

int grmode;

int errorcode;

char *errormsg;

initgraph(&grdriver,&grmode," ");

errorcode=graphresult();

errormsg=grapherrormsg(errorcode);

if(errorcode!=grOk){

printf("Graphics error: %s\n",errormsg);

}}运行后显示linker error:undefined symbol'daawstar'in module.怎么回事啊？

Answer 1

Graphics error: %s\n",errormsg

Answer 2

Graphics error: %s\n",errormsg

Answer 3

bu