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

static void snack_feed(char *board, int bw, int bh, int ssize) {
    int rf = rand() % ((bw - 2) * (bh - 2) - ssize), i;
    for (i=0; i<bw*bh; i++) {
        if (board[i] == ' ' && !rf--) {
            board[i] = 'f'; break;
        }
    }
}

static void snack_init(char *board, int bw, int bh, int *snack, int *shead, int *stail, int *ssize) {
    int i; memset(board, ' ', bw * bh);
    for (i=0; i<bw-2; i++) board[i+1] = board[bw*bh - i - 2] = '-';
    for (i=0; i<bh-2; i++) board[bw+i*bw] = board[bw-1+bw+i*bw] = '|';
    board[0] = board[bw-1] = board[bw*(bh-1)] = board[bw*bh-1] = '+';
    board[bw/2 + bh/2*bw] = '@';
    *ssize = *shead = *stail = 1;
    snack[2] = bw/2; snack[3] = bh/2;
    snack_feed(board, bw, bh, *ssize);
}

static void snack_draw(char *board, int bw, int bh) {
    int i, j;
    system("cls"); printf("i-UP, k-DOWN, j-LEFT, l-RIGHT, q-EXIT\n\n");
    for (i=0; i<bh; i++) {
        for (j=0; j<bw; j++) printf("%c ", board[j+i*bw]);
        printf("\n");
    }
}

static int snack_move(char *board, int bw, int bh, int *snack, int *shead, int *stail, int *ssize, int d) {
    int hx = snack[*shead * 2 + 0], tx = snack[*stail * 2 + 0], ox = hx;
    int hy = snack[*shead * 2 + 1], ty = snack[*stail * 2 + 1], oy = hy;

    switch (d) {
    case 'J': case 'j': hx--; break; // left
    case 'L': case 'l': hx++; break; // right
    case 'I': case 'i': hy--; break; // up
    case 'K': case 'k': hy++; break; // down
    default : return -1;
    }

    if (board[hx + hy * bw] == '-' || board[hx + hy * bw] == '|' || (board[hx + hy * bw] == '#' && (hx != tx || hy != ty))) {
        return 'D'; // 'D' means snake die
    }

    if (board[hx + hy * bw] == 'f') {
        (*ssize)++; (*shead)++; *shead %= (bw-2)*(bh-2);
        board[ox + oy * bw] = '#'; board[hx + hy * bw] = '@';
        snack[*shead * 2 + 0] = hx; snack[*shead * 2 + 1] = hy;
        if (*ssize == (bw-2)*(bh-2)) return 'W'; // 'W' means win
        snack_feed(board, bw, bh, *ssize);
        return 'E'; // means snake eat
    }

    (*shead)++; *shead %= (bw-2)*(bh-2);
    (*stail)++; *stail %= (bw-2)*(bh-2);
    snack[*shead * 2 + 0] = hx; snack[*shead * 2 + 1] = hy;
    board[ox + oy * bw] = *ssize > 1 ? '#' : ' ';
    board[tx + ty * bw] = ' ';
    board[hx + hy * bw] = '@';
    return 'M';
}

int main(void) {
    int  width = 17, height = 11, snack[2 * (width-2) * (height-2)], shead = 0, stail = 0, ssize = 0, op = 0, reinit = 1, ret;
    char board[width * height];
    do {
        if (reinit) {
            snack_init(board, width, height, snack, &shead, &stail, &ssize);
            reinit = 0; op = 0;
        }
        ret = snack_move(board, width, height, snack, &shead, &stail, &ssize, op);
        snack_draw(board, width, height);
        switch (ret) {
        case 'D': reinit = 1; printf("\ngame over !\n\npress any key to try agin ...\n"); break;
        case 'W': reinit = 1; printf("\nyou win !\n\nYou are a clever and great snake !\n\npress any key to try agin ...\n"); break;
        }
    } while ((op = getch()) && op != 'q' && op != 'Q');
    return 0;
}

[此贴子已经被作者于2020-2-24 14:12编辑过]

[此贴子已经被作者于2020-2-24 14:13编辑过]

应该界定条件：
1，一个分号一行
2，除了定义变量和函数参数，执行语句不能用逗号运算符
3，可以连等，如a=b=c=0;
4，“{}”符号是否行数

不然有人一行就解决问题了

会屏闪，看着不舒服。

搞成不闪，不是做不到，是要多加几十行代码。

厉害，看看

666

#include<iostream>
#include<windows.h>
#include<time.h>
#include<stdlib.h>
#include<conio.h>
#define N 21
using namespace std;
void gotoxy(int x,int y)//位置函数
{
COORD pos;
pos.X=2*x;
pos.Y=y;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);
}
void color(int a)//颜色函数
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),a);
}
void init(int apple[2])//初始化函数(初始化围墙、显示信息、苹果)
{
int i,j;//初始化围墙
int wall[N+2][N+2]={{0}};
for(i=1;i<=N;i++)
{
for(j=1;j<=N;j++)
wall[i][j]=1;
}
color(11);
for(i=0;i<N+2;i++)
{
for(j=0;j<N+2;j++)
{
if(wall[i][j])
cout<<"■";
else cout<<"□" ;
}
cout<<endl;
}
gotoxy(N+3,1);//显示信息
color(20);
cout<<"按 W S A D 移动方向"<<endl;
gotoxy(N+3,2);
color(20);
cout<<"按任意键暂停"<<endl;
gotoxy(N+3,3);
color(20);
cout<<"得分:"<<endl;
apple[0]=rand()%N+1;//苹果
apple[1]=rand()%N+1;
gotoxy(apple[0],apple[1]);
color(12);
cout<<"●"<<endl;
}
int main()
{
int i,j;
int** snake=NULL;
int apple[2];
int score=0;
int tail[2];
int len=3;
char ch='p';
srand((unsigned)time(NULL));
init(apple);
snake=(int**)realloc(snake,sizeof(int*)*len);
for(i=0;i<len;i++)
snake[i]=(int*)malloc(sizeof(int)*2);
for(i=0;i<len;i++)
{
snake[i][0]=N/2;
snake[i][1]=N/2+i;
gotoxy(snake[i][0],snake[i][1]);
color(14);
cout<<"★"<<endl;
}
while(1)//进入消息循环
{
tail[0]=snake[len-1][0];
tail[1]=snake[len-1][1];
gotoxy(tail[0],tail[1]);
color(11);
cout<<"■"<<endl;
for(i=len-1;i>0;i--)
{
snake[i][0]=snake[i-1][0];
snake[i][1]=snake[i-1][1];
gotoxy(snake[i][0],snake[i][1]);
color(14);
cout<<"★"<<endl;
}
if(kbhit())
{
gotoxy(0,N+2);
ch=getche();
}
switch(ch)
{
case 'w':snake[0][1]--;break;
case 's':snake[0][1]++;break;
case 'a':snake[0][0]--;break;
case 'd':snake[0][0]++;break;
default: break;
}
gotoxy(snake[0][0],snake[0][1]);
color(14);
cout<<"★"<<endl;
Sleep(abs(200-0.5*score));
if(snake[0][0]==apple[0]&&snake[0][1]==apple[1])//吃掉苹果后蛇分数加1，蛇长加1
{
score++;
len++;
snake=(int**)realloc(snake,sizeof(int*)*len);
snake[len-1]=(int*)malloc(sizeof(int)*2);
apple[0]=rand()%N+1;
apple[1]=rand()%N+1;
gotoxy(apple[0],apple[1]);
color(12);
cout<<"●"<<endl;
gotoxy(N+5,3);
color(20);
cout<<score<<endl;
}
if(snake[0][1]==0||snake[0][1]==N||snake[0][0]==0||snake[0][0]==N)//撞到围墙后失败
{
gotoxy(N/2,N/2);
color(30);
cout<<"失败!!!"<<endl;
for(i=0;i<len;i++)
free(snake[i]);
Sleep(INFINITE);
exit(0);
}
}
return 0;
}
我135行。