简单的贪吃蛇代码，可上机运行

 贪吃蛇无敌版，可穿墙，英文输入法小写字母wasd操作。

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

#define up 'w'
#define down 's'
#define left 'a'
#define right 'd'
#define space 'q'
#define slow 'e'

void gotoxy(int x, int y);
int ClickControl();
void moveobject();
void food();
int color(int c);
void border();
void wall();
//srand((unsigned)time(0));


int j,i,k,click,length=5;
int _time=100000000;
typedef struct Snake
{
    int x;
    int y;
    struct Snake *next;
}snake;
snake s={15,15};
snake *head;
snake ss[100];

main()
{

	int c;

    ss[0]=s;
    snake temp[2];
	for(i=1;i<length;i++)
    {
	    ss[i].x=ss[0].x-2*i;
	    ss[i].y=ss[0].y;
	}
	head=ss;
	while(1)
	{
	wall();
		food();

		temp[0]=ss[0];
		ClickControl();
		moveobject();

		border();

	    for(i=1;i<length;i++)
		{                                 //交换temp[0]和ss[i]的值
		    temp[1]=ss[i];
			ss[i]=temp[0];
			temp[0]=temp[1];
		}
		srand((unsigned)time(0));
		color(2);
		for(i=0;i<length;i++)
		{
			if(i==0)
			{
			    gotoxy(ss[i].x,ss[i].y);
				printf("¤");
//                printf(" 0");
			}

			else{

	        gotoxy(ss[i].x,ss[i].y);
			c=rand()%13+1;


//			printf("");
            printf("⊙");
			}
       	}
       	gotoxy(68,3);
       	printf("你的得分是：%d",length*100-500);
//		   system("cls");
        for(i=0;i<_time;i++);
        for(i=0;i<length;i++)
        {
        	gotoxy(ss[i].x,ss[i].y);
        	printf("  ");
		}
//		_time=100000000;
	}
}

void gotoxy(int x, int y)
{
    COORD pos;
    HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
    pos.X = x;
    pos.Y = y;
    SetConsoleCursorPosition(hOutput, pos);

    CONSOLE_CURSOR_INFO cursor;
    cursor.bVisible = FALSE;
    cursor.dwSize = sizeof(cursor);
    SetConsoleCursorInfo(hOutput, &cursor);
}

void moveobject()
{
	int x,y;
	x=ss[0].x;
	y=ss[0].y;

	switch (click)
    {
    case up:
        y -= 1;
        break;
    case down:
        y += 1;
        break;
    case left:
        x -= 2;
        break;
    case right:
        x += 2;
        break;
    case space:
    	_time=4000000;break;
    case slow:
    	_time=100000000;break;
    default:
        break;
    }

    ss[0].x=x;
	ss[0].y=y;
}

int ClickControl()
{
    char c;
    while (1)
    {
        if (_kbhit() == 0) return 0;
        if (_kbhit())
        {
            click = _getch();
        }
        moveobject();
    }
    return 1;
}

void food()
{
	int static foodx,foody,h_food=0;
	srand((unsigned)time(0));
	if(!h_food)
	{
	    foodx=rand()%29*2+3;
    	foody=rand()%25+1;
    	gotoxy(foodx,foody);
//    	printf("■");
		h_food=1;
	}
	gotoxy(foodx,foody);
	color(4);
    printf("■");
    for(i=0;i<length;i++)
	if(ss[i].x==foodx&&ss[i].y==foody)
	{
	    length+=1;
	    h_food=0;
	}
}

int color(int c)
{
	SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), c);        //更改文字颜色
	return 0;
}

void border()
{
	if(head->x<=1)
	    head->x=61;
	else if(head->x>=61)
	    head->x=1;
	if(head->y<=0)
	    head->y=28;
	else if(head->y>=28)
	    head->y=0;
}

void wall()
{
	color(5);
	gotoxy(0,0);
	for(i=0;i<=61;i+=2)
	{
		printf("■");
	}
	gotoxy(0,28);
	for(i=0;i<=61;i+=2)
	{
		printf("■");
	}
	for(i=0;i<=28;i++)
	{
		gotoxy(0,i);
		printf("■");
	}
	for(i=0;i<=28;i++)
	{
		gotoxy(62,i);
		printf("■");
	}
}

运行结果如下：