這是一個純C語言寫的貪吃蛇遊戲，供大家參考，具體內容如下

#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<time.h>
#include<conio.h>

#define SNAKE_LENGTH 100//定義蛇的最大長度
#define SCREEN_WIDETH 80
#define SCREEN_HEIGHT 30

//定義每一節蛇的座標
struct coor{
 int x;
 int y;
};

//列舉方向
enum CH {
 right = VK_RIGHT,left = VK_LEFT,up = VK_UP,down = VK_DOWN
};

//定義蛇的屬性
struct snake{
 int len;//當前蛇的長度
 struct coor coord[SNAKE_LENGTH];//每一節蛇的座標
 enum CH CH;//定義蛇的方向
 int SPEED;
 int flag;//定義蛇的狀態  1表示存活  0表示死亡
}snake;

//游標移動函式
void gotoxy(int x,int y)
{
 COORD pos;
 pos.X = x;
 pos.Y = y;
 SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);
}

//初始化遊戲介面
void init_sence()
{
 //初始化上下牆
 for (int i = 0; i < SCREEN_WIDETH; i += 2)
 {
 gotoxy(i,0);
 printf("■");
 gotoxy(i,SCREEN_HEIGHT);
 printf("■");
 }
 //初始化左右牆
 for (int i = 0; i <=SCREEN_HEIGHT; i++)
 {
 gotoxy(0,i);
 printf("■");
 gotoxy(SCREEN_WIDETH,i);
 printf("■");
 }
 //列印提示資訊
 gotoxy(SCREEN_WIDETH + 5,2);
 printf("\t\t貪吃蛇");
 gotoxy(SCREEN_WIDETH + 5,6);
 printf("2018//12//1");
 gotoxy(SCREEN_WIDETH + 5,8);
 printf("作者：小豆芽");
 gotoxy(SCREEN_WIDETH + 5,10);
 printf("F1:加速\tF2：減速");
 gotoxy(SCREEN_WIDETH + 5,12);
 printf("CTRL:繼續\t空格：暫停");
 gotoxy(SCREEN_WIDETH + 5,14);
 printf("ESC:退出遊戲");
 gotoxy(SCREEN_WIDETH + 5,28);
 printf("建議：QQ：2862841130:::");
}

struct foodcoord {
 int x;
 int y;
 int flag;//定義食物的狀態
}food;


//**這是c程式**


#include"snake.h"
//蛇的移動
void move_snake();
//畫出蛇
void draw_snake();
//產生食物
void creatfood();
//判斷蛇是否吃到食物
void eatfood();
//判斷蛇是否死掉
void SnakeState();


int main()
{
 //設定視窗大小
 system("mode con cols=110 lines=31");
 //設定標題
 SetConsoleTitleA("貪吃蛇");


 //初始化蛇
begin:
 snake.CH = VK_RIGHT;//初始化方向
 snake.len = 5; //初始化長度
 snake.SPEED = 300;//初始化蛇的移動速度
 snake.coord[1].x = SCREEN_WIDETH / 2;//初始化蛇頭的座標
 snake.coord[1].y = SCREEN_HEIGHT / 2;
 snake.coord[2].x = SCREEN_WIDETH / 2-2;//初始化蛇頭的座標
 snake.coord[2].y = SCREEN_HEIGHT / 2;
 snake.coord[3].x = SCREEN_WIDETH / 2-4;//初始化蛇頭的座標
 snake.coord[3].y = SCREEN_HEIGHT / 2;

 //初始化食物狀態
 food.flag = 1;//1表示吃到食物  0表示沒有吃到食物

   //初始化食物狀態
 snake.flag = 1;//1活 0死

 init_sence();//初始化遊戲介面
 while (1)
 {
 draw_snake();//畫蛇
 Sleep(snake.SPEED);//蛇的移動速度
 move_snake();//移動蛇
 if(food.flag)
 creatfood();//產生食物
 eatfood();//判斷是否吃到食物
 SnakeState();//判斷蛇是否死亡
 if (!snake.flag)break;
 }
 system("cls");
 gotoxy(SCREEN_WIDETH/2,SCREEN_HEIGHT/2-4);
 printf(" GAME OVER!!!");
 gotoxy(SCREEN_WIDETH / 2-6,SCREEN_HEIGHT / 2+2);
 printf("你的得分是：\t\t\t%d ",snake.len-1);
 gotoxy(SCREEN_WIDETH / 2-6,SCREEN_HEIGHT / 2+4);
 printf("我不服再來：\t\t\tCTRL ");
 gotoxy(SCREEN_WIDETH / 2-6,SCREEN_HEIGHT / 2+6);
 printf("算了垃圾遊戲毀我青春:\t\tESC");

 while (1)
 {
 if (GetAsyncKeyState(VK_CONTROL))
 {
  system("cls");
  goto begin;
 }
 else if (GetAsyncKeyState(VK_ESCAPE))
  return 0;
 }
}

//蛇的移動
void move_snake()
{
 //判斷是否有按鍵操作
 if (GetAsyncKeyState(up))
 {
 if(snake.CH!=down)snake.CH = up;
 }
 else if (GetAsyncKeyState(down))
 {
 if (snake.CH != up)snake.CH = down;
 }
 else if (GetAsyncKeyState(right))
 {
 if (snake.CH != left)snake.CH = right;
 }
 else if (GetAsyncKeyState(left))
 {
 if (snake.CH != right)snake.CH = left;
 }
 else if (GetAsyncKeyState(VK_F1))
 {
 if(snake.SPEED>=100)snake.SPEED -= 50;
 }
 else if (GetAsyncKeyState(VK_F2))
 {
 if (snake.SPEED <= 3000)snake.SPEED += 100;
 }
 //根據檢測到的方向改變蛇頭的位置
 switch (snake.CH)
 {
 case right:snake.coord[1].x += 2; break;
 case left:snake.coord[1].x -= 2; break;
 case up:snake.coord[1].y -= 1; break;
 case down:snake.coord[1].y += 1; break;
 }
 
 
}

//畫出蛇
void draw_snake()
{
 //畫出蛇頭
 gotoxy(snake.coord[1].x,snake.coord[1].y);
 printf("□");

 //畫出蛇身，直接一個for迴圈實現
 for (int i = 2; i <= snake.len; i++)
 {
 gotoxy(snake.coord[i].x,snake.coord[i].y);
 printf("□");
 }
 //擦掉尾巴
 gotoxy(snake.coord[snake.len].x,snake.coord[snake.len].y);
 printf(" ");

 //遍歷每一節蛇
 for (int i = snake.len; i >1; i--)
 {
 snake.coord[i].x = snake.coord[i - 1].x;
 snake.coord[i].y = snake.coord[i - 1].y;
 }
 
 gotoxy(0,0);
 printf("■");
 gotoxy(85,25);
 printf("得分:%d ",snake.len-1);
 
}

//產生食物
void creatfood()
{
 //隨機種子生成
 srand((unsigned)time(NULL));
 if(food.flag)
 while (1)
 {
 food.x = rand() % 80;
 food.y = rand() % 30;
 if (food.x % 2 == 0 && food.x >= 2 && food.x <= 78 && food.y > 1 && food.y < 30)
 {
  int flag = 0;
  //判斷產生的食物可不可能在蛇的身體上
  for (int i = 1; i <= snake.len; i++)
  {
  if (snake.coord[i].x == food.x&&snake.coord[i].y == food.y)
  {
   flag = 1;
   break;
  }
  }
  if (flag)continue;
  //繪製食物
  else
  {
  gotoxy(food.x,food.y);
  printf("⊙");
  food.flag = 0;
  break;
  }
 }
 }
 food.flag = 0;
}

//判斷蛇是否吃到食物
void eatfood()
{
 //只需要判斷蛇頭是否與食物重合
 if (food.x == snake.coord[1].x&&food.y == snake.coord[1].y)
 {
  snake.len+=1;
  food.flag = 1;
 }
}

//判斷蛇是否死掉
void SnakeState()
{
 if (snake.coord[1].x < 2 || snake.coord[1].x>78 || snake.coord[1].y < 1 || snake.coord[1].y>29)
 snake.flag = 0;

 for (int i = 2; i <= snake.len; i++)
 {
 if (snake.coord[1].x == snake.coord[i].x&&snake.coord[1].y == snake.coord[i].y)
  snake.flag = 0;
 }
 
}

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