古之成大事者，非唯有超世之英杰，亦必有坚韧不拔之志

#include<stdio.h>
#include<stdilb.h>
#include<graphics.h>
#include<bios.h>
#include<conio.h>

#define LEFT 0x4b00
#define RIGHT 0x4d00
#define DOWN 0x5000
#define UP 0x4800

#define OFFSET 20
#define OFFSET_x 4
#define OFFSet_y 3
#define N 19

int status [N][N];
int step_x step_y;
int key;
int flag;
void DrawBoard();
void DrawCircle(int x,int y,int color);
void Alternation();
void JudgePlayer();
void Done();
int ResultCherk(int x,int y);
void WelcomeInfo();
void ShowMessage();

void WelcomeInfo()
{
    char ch;
    gotoxy(12,4);
    printf("Welcome you to gobang world!");
    gotoxy(12,6);
    printf("1.you can use the up,down,left and right key to move the chessman");
    gotoxy(12,8);
    printf(" and you can press Space to enter after you move it");
    gotoxy(12,10);
    printf(" you can use Esc to exit the game too");
    gotoxy(12,12);
    printf("Do not move the pieces out of the chessboard!");
    gotoxy(12,14);
    printf("Do you want to contine?");
    ch=getchar();
    if (ch=="n"||ch=="N")
    exit(0);
}

void DrawBoard()
{
    int x1,x2;
    int y1,y2;
    setbkcolor(2);
    setcolor(1);
    setlinestyle(DOTTED_LINE,1,1);
    for(x1=1,y1=1,y2=18;x1<=18;x1++)
    line((x1+OFFSET_x)*OFFSET,(y1+OFFSET_y)*OFFSET,(x1+OFFSET_x)*OFFSET,(y2+OFFSET_y)*OFFSET)
    for(x1=1,y1=1,x2=18;y1<=18;y++)
    line((x1+OFFSET_x)*OFFSET,(y1+OFFSET_y)*OFFSET,(x1+OFFSET_x)*OFFSET,(y2+OFFSET_y)*OFFSET)
    for(x1=1;x1<=18;x1++)
       for(y1=1;y1<=18;y1++)
       setcolor(14);
       settextstyle(1,0,1);
       outtextxy((19+OFFSET_x)*OFFSET,(2+))
}