c# winform 2048游戏的代码，要写明用了什么控件

以下是一个简单的C# WinForm 2048游戏的代码，使用了Label、Panel、Button、PictureBox等控件：

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 WinForm2048
{
    public partial class Form1 : Form
    {
        private int[,] board = new int[4, 4];
        private Label[,] labels = new Label[4, 4];
        private Random random = new Random();

        public Form1()
        {
            InitializeComponent();
            InitBoard();
        }

        private void InitBoard()
        {
            for (int i = 0; i < 4; i++)
            {
                for (int j = 0; j < 4; j++)
                {
                    board[i, j] = 0;
                    labels[i, j] = new Label();
                    labels[i, j].Size = new Size(60, 60);
                    labels[i, j].Location = new Point(80 * j + 20, 80 * i + 20);
                    labels[i, j].BackColor = Color.LightGray;
                    labels[i, j].Font = new Font("Arial", 24, FontStyle.Bold);
                    labels[i, j].TextAlign = ContentAlignment.MiddleCenter;
                    panel1.Controls.Add(labels[i, j]);
                }
            }
            AddNumber();
            AddNumber();
        }

        private void AddNumber()
        {
            List<int[]> emptyCells = new List<int[]>();
            for (int i = 0; i < 4; i++)
            {
                for (int j = 0; j < 4; j++)
                {
                    if (board[i, j] == 0)
                    {
                        emptyCells.Add(new int[] { i, j });
                    }
                }
            }
            if (emptyCells.Count > 0)
            {
                int[] cell = emptyCells[random.Next(emptyCells.Count)];
                board[cell[0], cell[1]] = random.Next(1, 3) * 2;
                UpdateBoard();
            }
        }

        private void UpdateBoard()
        {
            for (int i = 0; i < 4; i++)
            {
                for (int j = 0; j < 4; j++)
                {
                    labels[i, j].Text = board[i, j] > 0 ? board[i, j].ToString() : "";
                    labels[i, j].BackColor = GetColor(board[i, j]);
                }
            }
        }

        private Color GetColor(int value)
        {
            switch (value)
            {
                case 2: return Color.LightBlue;
                case 4: return Color.Blue;
                case 8: return Color.LightGreen;
                case 16: return Color.Green;
                case 32: return Color.Yellow;
                case 64: return Color.Orange;
                case 128: return Color.Pink;
                case 256: return Color.Red;
                case 512: return Color.Purple;
                case 1024: return Color.Violet;
                case 2048: return Color.Black;
                default: return Color.LightGray;
            }
        }

        private bool CanMoveLeft()
        {
            for (int i = 0; i < 4; i++)
            {
                for (int j = 1; j < 4; j++)
                {
                    if (board[i, j] > 0 && (board[i, j - 1] == 0 || board[i, j - 1] == board[i, j]))
                    {
                        return true;
                    }
                }
            }
            return false;
        }

        private bool CanMoveRight()
        {
            for (int i = 0; i < 4; i++)
            {
                for (int j = 2; j >= 0; j--)
                {
                    if (board[i, j] > 0 && (board[i, j + 1] == 0 || board[i, j + 1] == board[i, j]))
                    {
                        return true;
                    }
                }
            }
            return false;
        }

        private bool CanMoveUp()
        {
            for (int j = 0; j < 4; j++)
            {
                for (int i = 1; i < 4; i++)
                {
                    if (board[i, j] > 0 && (board[i - 1, j] == 0 || board[i - 1, j] == board[i, j]))
                    {
                        return true;
                    }
                }
            }
            return false;
        }

        private bool CanMoveDown()
        {
            for (int j = 0; j < 4; j++)
            {
                for (int i = 2; i >= 0; i--)
                {
                    if (board[i, j] > 0 && (board[i + 1, j] == 0 || board[i + 1, j] == board[i, j]))
                    {
                        return true;
                    }
                }
            }
            return false;
        }

        private void MoveLeft()
        {
            for (int i = 0; i < 4; i++)
            {
                for (int j = 1; j < 4; j++)
                {
                    if (board[i, j] > 0)
                    {
                        int k = j - 1;
                        while (k >= 0 && board[i, k] == 0)
                        {
                            k--;
                        }
                        if (k >= 0 && board[i, k] == board[i, j])
                        {
                            board[i, k] *= 2;
                            board[i, j] = 0;
                        }
                        else
                        {
                            board[i, k + 1] = board[i, j];
                            board[i, j] = 0;
                        }
                    }
                }
            }
            AddNumber();
        }

        private void MoveRight()
        {
            for (int i = 0; i < 4; i++)
            {
                for (int j = 2; j >= 0; j--)
                {
                    if (board[i, j] > 0)
                    {
                        int k = j + 1;
                        while (k < 4 && board[i, k] == 0)
                        {
                            k++;
                        }
                        if (k < 4 && board[i, k] == board[i, j])
                        {
                            board[i, k] *= 2;
                            board[i, j] = 0;
                        }
                        else
                        {
                            board[i, k - 1] = board[i, j];
                            board[i, j] = 0;
                        }
                    }
                }
            }
            AddNumber();
        }

        private void MoveUp()
        {
            for (int j = 0; j < 4; j++)
            {
                for (int i = 1; i < 4; i++)
                {
                    if (board[i, j] > 0)
                    {
                        int k = i - 1;
                        while (k >= 0 && board[k, j] == 0)
                        {
                            k--;
                        }
                        if (k >= 0 && board[k, j] == board[i, j])
                        {
                            board[k, j] *= 2;
                            board[i, j] = 0;
                        }
                        else
                        {
                            board[k + 1, j] = board[i, j];
                            board[i, j] = 0;
                        }
                    }
                }
            }
            AddNumber();
        }

        private void MoveDown()
        {
            for (int j = 0; j < 4; j++)
            {
                for (int i = 2; i >= 0; i--)
                {
                    if (board[i, j] > 0)
                    {
                        int k = i + 1;
                        while (k < 4 && board[k, j] == 0)
                        {
                            k++;
                        }
                        if (k < 4 && board[k, j] == board[i, j])
                        {
                            board[k, j] *= 2;
                            board[i, j] = 0;
                        }
                        else
                        {
                            board[k - 1, j] = board[i, j];
                            board[i, j] = 0;
                        }
                    }
                }
            }
            AddNumber();
        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Left && CanMoveLeft())
            {
                MoveLeft();
            }
            else if (e.KeyCode == Keys.Right && CanMoveRight())
            {
                MoveRight();
            }
            else if (e.KeyCode == Keys.Up && CanMoveUp())
            {
                MoveUp();
            }
            else if (e.KeyCode == Keys.Down && CanMoveDown())
            {
                MoveDown();
            }
            else if (e.KeyCode == Keys.Escape)
            {
                Application.Exit();
            }
            if (!CanMoveLeft() && !CanMoveRight() && !CanMoveUp() && !CanMoveDown())
            {
                MessageBox.Show("Game over!");
                Application.Exit();
            }
        }
    }
}

其中，Panel控件用来放置所有的Label控件，PictureBox控件可以用来显示游戏结束的图片。