第一個代碼片段是我的主要渲染方法。我正在創(chuàng)建緩沖區(qū)策略，然后 getState().render(g) 傳遞 Graphics 對象并調(diào)用一堆 g.drawImage() 方法，畢竟，調(diào)用 saveImage() 并生成完全黑色的圖像（游戲截圖）預(yù)期的）。第二個片段是將畫布保存到圖像。private void render() {    bs = display.getCanvas().getBufferStrategy();    if (bs == null) {        display.getCanvas().createBufferStrategy(3);        return;    }    g = bs.getDrawGraphics();    g.clearRect(0, 0, width, height);    if (State.getState() != null)        State.getState().render(g); // this just calls g.drawImage many times    saveImage(g);    bs.show();    g.dispose();}這是我保存它的方式：private void saveImage(Graphics g) {    BufferedImage image = new  BufferedImage(getCanvas().getWidth(), getCanvas().getHeight(), BufferedImage.TYPE_INT_RGB);    Graphics2D graphics = image.createGraphics();    display.getCanvas().paint(graphics);    graphics.dispose();    try {        FileOutputStream out = new FileOutputStream("snapshot.png");        ImageIO.write(image, "png", out);        out.close();    } catch (FileNotFoundException e) {        e.printStackTrace();    } catch (IOException e) {        e.printStackTrace();    }}