帮我编写一个c语言贪吃蛇小游戏

好的，我可以帮您编写一个 C 语言贪吃蛇小游戏。以下是代码示例：

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

#define WIDTH 30
#define HEIGHT 20

int snake[WIDTH * HEIGHT][2];
int food[2];
int length = 3;
int direction = 1; // 1: right, 2: down, 3: left, 4: up

void init() {
    int i, j;
    for (i = 0; i < WIDTH; i++) {
        for (j = 0; j < HEIGHT; j++) {
            if (i == 0 || i == WIDTH - 1 || j == 0 || j == HEIGHT - 1) {
                printf("#");
            } else {
                printf(" ");
            }
        }
        printf("\n");
    }
    snake[0][0] = WIDTH / 2;
    snake[0][1] = HEIGHT / 2;
    snake[1][0] = snake[0][0] - 1;
    snake[1][1] = snake[0][1];
    snake[2][0] = snake[1][0] - 1;
    snake[2][1] = snake[1][1];
    food[0] = rand() % (WIDTH - 2) + 1;
    food[1] = rand() % (HEIGHT - 2) + 1;
    printf("@");
    printf("\033[%d;%dH", food[1] + 1, food[0] + 1);
    printf("*");
}

void update() {
    int i;
    int tail[2];
    tail[0] = snake[length - 1][0];
    tail[1] = snake[length - 1][1];
    for (i = length - 1; i > 0; i--) {
        snake[i][0] = snake[i - 1][0];
        snake[i][1] = snake[i - 1][1];
    }
    switch (direction) {
        case 1:
            snake[0][0]++;
            break;
        case 2:
            snake[0][1]++;
            break;
        case 3:
            snake[0][0]--;
            break;
        case 4:
            snake[0][1]--;
            break;
    }
    if (snake[0][0] == food[0] && snake[0][1] == food[1]) {
        length++;
        food[0] = rand() % (WIDTH - 2) + 1;
        food[1] = rand() % (HEIGHT - 2) + 1;
        printf("\033[%d;%dH", food[1] + 1, food[0] + 1);
        printf("*");
    }
    printf("\033[%d;%dH", snake[0][1] + 1, snake[0][0] + 1);
    printf("@");
    printf("\033[%d;%dH", tail[1] + 1, tail[0] + 1);
    printf(" ");
}

int main() {
    srand(time(NULL));
    init();
    while (1) {
        if (_kbhit()) {
            int c = _getch();
            if (c == 224) {
                c = _getch();
                switch (c) {
                    case 72:
                        if (direction != 2) {
                            direction = 4;
                        }
                        break;
                    case 80:
                        if (direction != 4) {
                            direction = 2;
                        }
                        break;
                    case 75:
                        if (direction != 1) {
                            direction = 3;
                        }
                        break;
                    case 77:
                        if (direction != 3) {
                            direction = 1;
                        }
                        break;
                }
            }
        }
        update();
        Sleep(100);
    }
    return 0;
}

希望这个代码可以帮助您实现一个简单的贪吃蛇小游戏。