使用PsychToolBox MATLAB在屏幕上显示相同的文本，而不与其他形状/图像翻转屏幕

Screen('Preference', 'SkipSyncTests', 1);  % 跳过同步测试
screens = Screen('Screens');
screenNumber = max(screens);
white = WhiteIndex(screenNumber);
black = BlackIndex(screenNumber);
[window, windowRect] = PsychImaging('OpenWindow', screenNumber, black);  % 打开屏幕窗口

[screenXpixels, screenYpixels] = Screen('WindowSize', window);
[xCenter, yCenter] = RectCenter(windowRect);

textSize = round(screenYpixels / 10);  % 设置文本大小
Screen('TextSize', window, textSize);
textColor = [1 1 1];  % 设置文本颜色为白色
Screen('TextColor', window, textColor);
theText = 'Hello World!';  % 设置要显示的文本

textBounds = Screen('TextBounds', window, theText);  % 获取文本边界
textRect = CenterRectOnPoint(textBounds, xCenter, yCenter);  % 将文本边界居中
Screen('DrawText', window, theText, textRect(1), textRect(2));  % 在屏幕上绘制文本
Screen('Flip', window);  % 刷新屏幕显示

Screen('Preference', 'SkipSyncTests', 1);
screens = Screen('Screens');
screenNumber = max(screens);
white = WhiteIndex(screenNumber);
black = BlackIndex(screenNumber);
[window, windowRect] = PsychImaging('OpenWindow', screenNumber, black);

[screenXpixels, screenYpixels] = Screen('WindowSize', window);
[xCenter, yCenter] = RectCenter(windowRect);

textSize = round(screenYpixels / 10);
Screen('TextSize', window, textSize);
textColor = [1 1 1];
Screen('TextColor', window, textColor);
theText = 'Hello World!';

textBounds = Screen('TextBounds', window, theText);
textRect = CenterRectOnPoint(textBounds, xCenter, yCenter);
Screen('DrawText', window, theText, textRect(1), textRect(2));
Screen('Flip', window);

KbStrokeWait;  % 等待按下键盘继续执行后续操作

sca;  % 关闭窗口，释放资源