public class BodyCell : PictureBox    {        public Direction direct        { get; set; }        public BodyCell()            : base()        {            this.Width = 10;            this.Height = 10;            this.BackColor = Color.Black;            direct = Direction.Right;        }    }using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;namespace Snake{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        public int bodyCount = 5;        public Direction direct = Direction.Right;        //public BodyCell[] cells;        public List
        
          cells;        public PictureBox food;        private void Form1_Load(object sender, EventArgs e)        {            cells = new List
         
          ();            for (int i = 0; i < bodyCount; i++)            {                BodyCell cell = new BodyCell();                cell.Left = i * 10;                cell.Top = panel1.Height / 2;                cells.Add(cell);                panel1.Controls.Add(cell);            }            food = new PictureBox();            food.BackColor = Color.Black;            food.Height = 10;            food.Width = 10;            Random rY = new Random();            food.Top = rY.Next(0, 30) * 10;            Random rX = new Random();            food.Left = rX.Next(0, 30) * 10;            panel1.Controls.Add(food);        }        private void Timer_Process_Tick(object sender, EventArgs e)        {            SnakeProcess();            if (GameOver())            {                Timer_Process.Enabled = false;                MessageBox.Show("Game Over");            }        }        private void SnakeProcess()        {            #region  移动            for (int i = bodyCount - 1; i >= 0; i--)            {                if (cells[i].direct == Direction.Right)                {                    cells[i].Left += 10;                }                else if (cells[i].direct == Direction.Left)                {                    cells[i].Left -= 10;                }                else if (cells[i].direct == Direction.Up)                {                    cells[i].Top -= 10;                }                else if (cells[i].direct == Direction.Down)                {                    cells[i].Top += 10;                }            }            for (int i = 0; i < bodyCount - 1; i++)            {                cells[i].direct = cells[i + 1].direct;            }            #endregion            #region 吃食物            EatFood();            #endregion        }        private bool GameOver()        {            bool isOver = false;            //撞墙            if (cells[bodyCount - 1].Top == 0 && cells[bodyCount - 1].direct == Direction.Up)            {                isOver = true;            }            if (cells[bodyCount - 1].Top == 300 && cells[bodyCount - 1].direct == Direction.Down)            {                isOver = true;            }            if (cells[bodyCount - 1].Left == 0 && cells[bodyCount - 1].direct == Direction.Left)            {                isOver = true;            }            if (cells[bodyCount - 1].Left == 300 && cells[bodyCount - 1].direct == Direction.Right)            {                isOver = true;            }            //撞自己            for (int i = bodyCount - 2; i >= 0; i--)            {                if (cells[i].Top == cells[bodyCount - 1].Top && cells[i].Left == cells[bodyCount - 1].Left)                {                    isOver = true;                    break;                }            }            return isOver;        }        private void EatFood()        {            BodyCell head = cells[bodyCount - 1];            if (cells[bodyCount - 1].Top == food.Top && cells[bodyCount - 1].Left == food.Left)            {                BodyCell cell = new BodyCell();                panel1.Controls.Add(cell);                cell.direct = head.direct;                if (head.direct == Direction.Up)                {                    cell.Top = head.Top - 10;                    cell.Left = head.Left;                }                else if (head.direct == Direction.Down)                {                    cell.Top = head.Top + 10;                    cell.Left = head.Left;                }                else if (head.direct == Direction.Left)                {                    cell.Top = head.Top;                    cell.Left = head.Left - 10;                }                else if (head.direct == Direction.Right)                {                    cell.Top = head.Top;                    cell.Left = head.Left + 10;                }                cells.Add(cell);                bodyCount++;                panel1.Controls.Remove(food);                Random rY = new Random();                food.Top = rY.Next(0, 30) * 10;                Random rX = new Random();                food.Left = rX.Next(0, 30) * 10;                panel1.Controls.Add(food);            }        }        private void Form1_KeyDown(object sender, KeyEventArgs e)        {            if (e.KeyCode == Keys.Up && cells[bodyCount - 1].direct != Direction.Down)            {                //direct = Direction.Up;                cells[bodyCount - 1].direct = Direction.Up;            }            else if (e.KeyCode == Keys.Left && cells[bodyCount - 1].direct != Direction.Right)            {                //direct = Direction.Left;                cells[bodyCount - 1].direct = Direction.Left;            }            else if (e.KeyCode == Keys.Down && cells[bodyCount - 1].direct != Direction.Up)            {                //direct = Direction.Down;                cells[bodyCount - 1].direct = Direction.Down;            }            else if (e.KeyCode == Keys.Right && cells[bodyCount - 1].direct != Direction.Left)            {                //direct = Direction.Right;                cells[bodyCount - 1].direct = Direction.Right;            }        }    }    public enum Direction    {        Up,        Down,        Left,        Right    }}