PTB-INFO: Enforcing script abortion and restoring desktop by executing Screen('CloseAll') now!
PTB-INFO: Please ignore the false error message (INTERNAL PSYCHTOOLBOX ERROR) caused by this...
Error in function DrawText: Invalid Window (or Texture) Index provided: It doesn't correspond to an open window or texture.
Did you close it accidentally via Screen('Close') or Screen('CloseAll') ?
错误使用 Screen
Usage:

[newX,newY,textHeight]=Screen('DrawText', windowPtr, text [,x] [,y] [,color] [,backgroundColor] [,yPositionIsBaseline] [,swapTextDirection]);

这是怎么回事？