请问能帮我写更完整的代码吗？

当然可以，以下是一个完整的示例代码：

% 读取多个图像
img1 = imread('image1.jpg');
img2 = imread('image2.jpg');
img3 = imread('image3.jpg');

% 将多个图像保存在 cell 数组中
img_cell = {img1, img2, img3};

% 求多个图像的平均值
img_mean = mean(cat(4, img_cell{:}), 4);

% 显示多个图像和平均图像
figure;
subplot(2,2,1); imshow(img1); title('Image 1');
subplot(2,2,2); imshow(img2); title('Image 2');
subplot(2,2,3); imshow(img3); title('Image 3');
subplot(2,2,4); imshow(img_mean); title('Mean Image');

这个示例代码中，首先读取了三张图像，并将它们保存在 cell 数组 `img_cell` 中。然后，使用 `mean` 函数求出了这三张图像的平均值，并将结果保存在 `img_mean` 中。最后，使用 `subplot` 函数将多个图像和平均图像显示在同一个窗口中。

相关问题

可以帮我写一下完整的代码吗

好的，以下是一个计算不规则物体体积的完整代码示例：

using UnityEngine;

public class VolumeCalculator : MonoBehaviour
{
    void Start()
    {
        Mesh mesh = GetComponent<MeshFilter>().mesh;
        Bounds bounds = mesh.bounds;
        float density = Physics.ComputeDensity(1.0f, mesh, transform.localToWorldMatrix);
        float volume = Physics.ComputeVolume(bounds, density);
        Debug.Log("体积为：" + volume);
    }
}

将该脚本挂载到需要计算体积的物体上，运行场景即可在控制台中看到该物体的体积信息。需要注意的是，该方法只适用于不包含空洞的不规则物体。如果物体内部存在空洞，可以考虑使用其他方法进行体积计算。

你能帮我写俄罗斯方块的代码吗

当然可以！不过，俄罗斯方块的代码比较长，需要写很多细节。我可以给你提供一个基本的框架，你可以在此基础上继续开发，实现完整的俄罗斯方块游戏。

在这个代码框架中，我使用了Java Swing库来实现图形界面，用一个二维数组来表示游戏区域的状态。游戏区域的大小为10x20，每个方块的宽度和高度为30个像素。游戏中总共有7种不同的方块，每种方块由4个小方块组成。

代码如下：

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

public class Tetris extends JPanel implements ActionListener, KeyListener {
    
    private static final long serialVersionUID = 1L;
    
    private final int WIDTH = 300;
    private final int HEIGHT = 600;
    private final int BLOCK_SIZE = 30;
    private final int[][] SHAPES = {
            {1, 1, 1, 1}, // I shape
            {1, 1, 1, 0, 1}, // T shape
            {1, 1, 0, 0, 1, 1}, // S shape
            {0, 1, 1, 1, 1}, // Z shape
            {1, 1, 0, 1, 0, 1}, // L shape
            {0, 1, 0, 1, 1, 1}, // J shape
            {1, 0, 0, 1, 1, 1} // O shape
    };
    private final Color[] COLORS = {
            Color.cyan, Color.magenta, Color.orange,
            Color.yellow, Color.green, Color.pink, Color.blue
    };
    private int[][] board;
    private int currentShape;
    private int currentX;
    private int currentY;
    private Timer timer;
    
    public Tetris() {
        board = new int[10][20];
        currentShape = new Random().nextInt(SHAPES.length);
        currentX = 4;
        currentY = 0;
        timer = new Timer(500, this);
        timer.start();
        addKeyListener(this);
        setFocusable(true);
    }
    
    public void actionPerformed(ActionEvent e) {
        moveDown();
    }
    
    private void moveDown() {
        if (canMove(currentShape, currentX, currentY + 1)) {
            currentY++;
        } else {
            fixShape();
            removeFullLines();
            newShape();
            if (!canMove(currentShape, currentX, currentY)) {
                gameOver();
            }
        }
        repaint();
    }
    
    private void moveLeft() {
        if (canMove(currentShape, currentX - 1, currentY)) {
            currentX--;
            repaint();
        }
    }
    
    private void moveRight() {
        if (canMove(currentShape, currentX + 1, currentY)) {
            currentX++;
            repaint();
        }
    }
    
    private void rotate() {
        int[][] rotatedShape = new int[4][4];
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 4; j++) {
                rotatedShape[j][3 - i] = SHAPES[currentShape][i * 4 + j];
            }
        }
        if (canMove(rotatedShape, currentX, currentY)) {
            SHAPES[currentShape] = rotatedShape;
            repaint();
        }
    }
    
    private void fixShape() {
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 4; j++) {
                if (SHAPES[currentShape][i * 4 + j] != 0) {
                    board[currentX + j][currentY + i] = currentShape + 1;
                }
            }
        }
    }
    
    private void removeFullLines() {
        int linesRemoved = 0;
        for (int i = board[0].length - 1; i >= 0; i--) {
            boolean lineFull = true;
            for (int j = 0; j < board.length; j++) {
                if (board[j][i] == 0) {
                    lineFull = false;
                    break;
                }
            }
            if (lineFull) {
                for (int k = i; k > 0; k--) {
                    for (int j = 0; j < board.length; j++) {
                        board[j][k] = board[j][k - 1];
                    }
                }
                linesRemoved++;
                i++;
            }
        }
        if (linesRemoved > 0) {
            // TODO: add score
        }
    }
    
    private void newShape() {
        currentShape = new Random().nextInt(SHAPES.length);
        currentX = 4;
        currentY = 0;
    }
    
    private boolean canMove(int[][] shape, int x, int y) {
        if (x < 0 || x + shape.length > board.length || y + shape[0].length > board[0].length) {
            return false;
        }
        for (int i = 0; i < shape.length; i++) {
            for (int j = 0; j < shape[i].length; j++) {
                if (shape[i][j] != 0 && board[x + i][y + j] != 0) {
                    return false;
                }
            }
        }
        return true;
    }
    
    public void keyPressed(KeyEvent e) {
        switch (e.getKeyCode()) {
        case KeyEvent.VK_UP:
            rotate();
            break;
        case KeyEvent.VK_DOWN:
            moveDown();
            break;
        case KeyEvent.VK_LEFT:
            moveLeft();
            break;
        case KeyEvent.VK_RIGHT:
            moveRight();
            break;
        }
    }
    
    public void keyTyped(KeyEvent e) {}
    
    public void keyReleased(KeyEvent e) {}
    
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D)g;
        g2d.setColor(Color.black);
        g2d.fillRect(0, 0, WIDTH, HEIGHT);
        for (int i = 0; i < board.length; i++) {
            for (int j = 0; j < board[i].length; j++) {
                if (board[i][j] != 0) {
                    g2d.setColor(COLORS[board[i][j] - 1]);
                    g2d.fillRect(i * BLOCK_SIZE, j * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE);
                }
            }
        }
        g2d.setColor(COLORS[currentShape]);
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 4; j++) {
                if (SHAPES[currentShape][i * 4 + j] != 0) {
                    g2d.fillRect((currentX + j) * BLOCK_SIZE, (currentY + i) * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE);
                }
            }
        }
    }
    
    private void gameOver() {
        timer.stop();
        // TODO: display game over message
    }
    
    public static void main(String[] args) {
        JFrame frame = new JFrame("Tetris");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 600);
        frame.add(new Tetris());
        frame.setVisible(true);
    }

}

这是一个比较基础的代码框架，你可以在此基础上添加更多的功能，比如计分、下落速度逐渐加快等等。