实现各种图的建立和输出

#include<graphics.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include<math.h>

#define MaxVertexNum 100

typedef struct Graph
{
/*char vexs[MaxVertexNum];*/
int edges[MaxVertexNum][MaxVertexNum];
int v,e;
}Graphic;
typedef struct Anode
{
int adjvex;
struct Anode *nextarc;
}ArcNode;

typedef struct Vnode
{
char data;
ArcNode *firstarc;
}Adjlist[20];

typedef struct ALGraph
{
Adjlist adjlist;
int v,e;

}AGraph;

void Huitu()                                                          /*无向图的图形生成*/

{ 
  char buffer[100];
int graphdriver = DETECT, graphmode;
int i,xbefore,ybefore;
int x1,y1; char c; 
registerbgidriver(EGAVGA_driver);                      /*使用EGA\VGA显卡模式，分辨率为640*480*/
initgraph(&graphdriver, &graphmode, "D:\\TC201E");      /*图形初始化*/
cleardevice();                                        /*清屏*/
printf("Please input coordinate:\n");
setfillstyle(1,WHITE);
setcolor(WHITE);
scanf("%d,%d,%s",&xbefore,&ybefore,buffer);
circle(xbefore,ybefore,15);
floodfill(xbefore,ybefore,WHITE);
setcolor(BLUE);
outtextxy(xbefore, ybefore, buffer);
setcolor(WHITE);
moveto(xbefore,ybefore);
while(1)
{
scanf("%d,%d,%s",&x1,&y1,buffer);
if(x1==0) break;
circle(x1,y1,15);
floodfill(x1,y1,WHITE);
setcolor(BLUE);
outtextxy(x1, y1, buffer);