Screen('CloseAll');
ShowCursor
wPtr=Screen('OpenWindow',0,[]);
[normtBoundRect,offsetBoundRect]=Screen('TextBounds',wPtr,'FUNKY!!',200,20);
[normtBoundRect]=TextBounds(wPtr,'FUNKY!!');

上面是我的代码，看不太懂报错信息。。。。也不是很明白这个函数怎么用