飞机大战 为什么我按1会退出程序？，是我哪处理有问题，

代码：
#include<graphics.h>
#include<conio.h>
#include<math.h>
#include<stdio.h>
#pragma warning(disable:4996)

#pragma comment(lib,"Winmm.lib")
#define High 864
#define Width 591      //游戏画面尺寸  

IMAGE img_bk; //背景图片
IMAGE img_planeNormal1, img_planeNormal2; //正常飞机照片
IMAGE img_planeExplode1, img_planeExplode2;//爆炸飞机图片 
IMAGE img_bullet1, img_bullet2;// 子弹图片 
IMAGE img_enemyPlane1, img_enemyPlane2;  //敌机照片 
float position_x, position_y;      //飞机位置 
float bullet_x, bullet_y; //子弹位置 
float enemy_x, enemy_y;  //敌机位置 


int isExpolde = 0; //飞机是否爆炸
int score = 0;  //得分

int gameStatus = 0;// 游戏状态，0为初始界面 ，1为正常游戏，2为结束游戏，3为游戏暂停

void staryMenu();  //菜单
void pauseMenu();//暂停菜单
void startup(); //数据初始化
void show(); //显示画面
void updateWithoutInput();//与用户输入无关的更新 
void updateWithInput();     //与用户输入有关的更新 
void gameover(); //游戏结束，之后的处理
void readRecordFile();//读取游戏存档
void writeRecordFile();//存储游戏存档

void staryMenu()  //菜单
{
    putimage(0, 0, &img_bk); //显示背景
    setbkmode(TRANSPARENT);
    settextcolor(BLACK);
    settextstyle(50, 0, _T("黑体"));
    outtextxy(Width*0.3, High*0.2, "1新游戏");
    outtextxy(Width*0.3, High*0.3, "2读取游戏存档");
    outtextxy(Width*0.3, High*0.4, "3退出");

    settextcolor(BLACK);
    settextstyle(30, 0, _T("黑体"));
    outtextxy(Width*0.25, High*0.55, "鼠标控制飞机移动");
    outtextxy(Width*0.25, High*0.6, "左键发射子弹");
    outtextxy(Width * 025, High*0.65, "esc暂停游戏");
    outtextxy(Width * 025, High*0.7, "撞击后按任意键重新开始");
    FlushBatchDraw();
    Sleep(2);

    char input;
    if (kbhit())
    {
        input = getch();
        if (input == '1')
            gameStatus = 1;
        else if (input == '2')
        {
            writeRecordFile();
            gameStatus = 1;
        }
        else if (input == '3');
        {
            gameStatus = 2;
            exit(0);
        }
    }
}

void pauseMenu()//暂停菜单
{
    putimage(0, 0, &img_bk); //显示背景
    setbkmode(TRANSPARENT);
    settextcolor(BLACK);
    settextstyle(50, 0, _T("黑体"));
    outtextxy(Width*0.3, High*0.2, "1新游戏");
    outtextxy(Width*0.3, High*0.3, "2读取游戏存档");
    outtextxy(Width*0.3, High*0.4, "3退出");

    settextcolor(BLUE);
    settextstyle(30, 0, _T("黑体"));
    outtextxy(Width*0.25, High*0.55, "鼠标控制飞机移动");
    outtextxy(Width*0.25, High*0.6, "左键发射子弹");
    outtextxy(Width * 025, High*0.65, "esc暂停游戏");
    outtextxy(Width * 025, High*0.7, "撞击后按任意键重新开始");
    FlushBatchDraw();
    Sleep(2);
    char input;
    if (kbhit())
    {
        input = getch();
        if (input == '1')
            gameStatus = 1;
        else if (input == '2')
        {
            readRecordFile();
            gameStatus = 1;
        }
        else if (input == '3');
        {
            gameStatus = 2;
            exit(0);
        }
    }
}

void readRecordFile()//读取游戏存档
{
    FILE *fp;
    fp = fopen("..\\ttt", "r");
    fscanf(fp, "%f %f %f %f %f %f %d %d", &position_x, &position_y, &bullet_x, &bullet_y, &enemy_x, &enemy_y, &isExpolde, &score);
    fclose(fp);
}

void writeRecordFile()//读取游戏存档
{
    FILE *fp;
    fp = fopen("..\\ttt", "w");
    fscanf(fp, "%f %f %f %f %f %f %d %d", &position_x, &position_y, &bullet_x, &bullet_y, &enemy_x, &enemy_y, &isExpolde, &score);
    fclose(fp);
}

void startup()//数据初始化
{
    mciSendString("open ..\\images\\123.mp3 alias bkmusic", 0, 0, 0);//打开背景音乐
    mciSendString("play bkmusic repeat", NULL, 0, NULL);//循环播放

    initgraph(Width, High);
    //获取窗口句柄 
    HWND hwnd = GetHWnd();
    //设置窗口标题文字 
    SetWindowText(hwnd, "飞机大战1.0");

    loadimage(&img_bk, "..\\images\\background.jpg"); //背景 
    loadimage(&img_planeNormal1, "..\\images\\planeNormal_1.jpg"); //飞机 
    loadimage(&img_planeNormal2, "..\\images\planeNormal_2.jpg");
    loadimage(&img_bullet1, "..\\images\\bullet1.jpg"); //子弹 
    loadimage(&img_bullet2, "..\\images\\buttet2.jpg");
    loadimage(&img_enemyPlane1, "..\\images\\enemy_1.jpg"); //敌机 
    loadimage(&img_enemyPlane2, "..\\images\\enemy_2.jpg");
    loadimage(&img_planeExplode1, "..\\images\\planeBoom_1.jpg"); // 
    loadimage(&img_planeExplode2, "..\\images\\planeBoom_1.jpg");

    position_x = Width * 0.5;
    position_y = High * 0.7;
    bullet_x = position_x;
    bullet_y = -85;
    enemy_x = Width * 0.5;
    enemy_y = 10;

    BeginBatchDraw();

    while (gameStatus == 0)
        staryMenu();
}
void show()
{
    while (gameStatus == 3)
        pauseMenu();

    putimage(0, 0, &img_bk); //显示背景
    if (isExpolde == 0)
    {
        putimage(position_x - 50, position_y - 60, &img_planeNormal1, NOTSRCERASE);
        putimage(position_x - 50, position_y - 60, &img_planeNormal2, SRCINVERT);


        putimage(bullet_x - 7, bullet_y, &img_bullet1, NOTSRCERASE);
        putimage(bullet_x - 7, bullet_y, &img_bullet2, SRCINVERT);
        putimage(enemy_x, enemy_y, &img_enemyPlane1, NOTSRCERASE);
        putimage(enemy_x, enemy_y, &img_enemyPlane2, SRCINVERT);
    }
    else
    {//飞机爆炸 
        putimage(position_x - 50, position_y - 60, &img_planeExplode1, NOTSRCERASE);
        putimage(position_x - 50, position_y - 60, &img_planeExplode1, SRCINVERT);
    }
    settextcolor(RED);
    settextstyle(20, 0, _T("黑体"));
    outtextxy(Width*0.48, High*0.95, "得分：");
    char s[5];
    sprintf(s, "%d", score);
    outtextxy(Width*0.55, High*0.95, s);

    FlushBatchDraw();
    Sleep(2);
}

void updateWithoutInput()    //与用户输入无关的更新 
{

    if (isExpolde == 0)
    {
        if (bullet_y > -25)
            bullet_y = bullet_y - 2;

        if (enemy_y < High - 25)
            enemy_y = enemy_y + 0.5;
        else
            enemy_y = 10;

        if (float(bullet_x - enemy_x) + float(bullet_y - enemy_y) < 80) //子弹击中敌机 
        {
            enemy_x = rand() % Width;
            enemy_y = -40;
            bullet_y = -85;
            mciSendString("stop gemusic", NULL, 0, NULL);
            mciSendString("close gemusic", NULL, 0, NULL);
            mciSendString("open ..\\images\\123.mp3 alias bkmusic", NULL, 0, NULL);
            mciSendString("play gemusic", NULL, 0, NULL);
            score++;

            if (score > 0 && score % 5 == 0 && score % 2 != 0)
            {
                mciSendString("stop gemusic", NULL, 0, NULL);
                mciSendString("close gemusic", NULL, 0, NULL);
                mciSendString("open ..\\images\\123.mp3 alias bkmusic", NULL, 0, NULL);
                mciSendString("play gemusic", NULL, 0, NULL);
            }
            if (score % 10 == 0)
            {
                mciSendString("stop gemusic", NULL, 0, NULL);
                mciSendString("close gemusic", NULL, 0, NULL);
                mciSendString("open ..\\images\\123.mp3 alias bkmusic", NULL, 0, NULL);
                mciSendString("play gemusic", NULL, 0, NULL);
            }
        }

        if (float(position_x - enemy_x) + float(position_y - enemy_y) < 150)  //敌机击中我机 
        {
            isExpolde = 1;
            mciSendString("stop gemusic", NULL, 0, NULL);
            mciSendString("close gemusic", NULL, 0, NULL);
            mciSendString("open ..\\images\\123.mp3 alias bkmusic", NULL, 0, NULL);
            mciSendString("play gemusic", NULL, 0, NULL);
        }
    }
}



void updateWithInput()     //与用户输入有关的更新 
{
    if (isExpolde == 0)
    {
        MOUSEMSG m;
        while (MouseHit())
        {
            m = GetMouseMsg();
            if (m.uMsg == WM_MOUSEMOVE)
            {
                position_x = m.x;
                position_y = m.y;
            }
            else if (m.uMsg == WM_LBUTTONDOWN)
            {
                bullet_x = position_x;
                bullet_y = position_y - 85;

            }
        }
    }

    char input;
    if (kbhit())
    {
        input = getch();
        if (input == 27)
        {
            gameStatus = 3;
        }
    }
}


void gameover()
{
    EndBatchDraw();
    getch();
    closegraph();
}

int main()
{
    startup();
    while (1)
    {
        show();
        void updateWithoutInput();    //与用户输入无关的更新 
        void updateWithInput();     //与用户输入有关的更新 
    }
    gameover();
    return 0;
}