gca，gcf 如:set(gcf,'pointer','cross');
set(gcf,'WindowButtonDownFcn',@WindowButtonDown);
set(gcf,'WindowButtonMotionFcn',@WindowButtonMotion); 和p=get(gca,'currentpoint'); 是什么意思？谢谢

gcf = Get handle to current figure
gca = Get handle to current axis

set(gcf,'pointer','cross'); 把当前界面的光标形状设置为十字
set(gcf,'WindowButtonDownFcn',@WindowButtonDown); 把当前界面鼠标点击响应设置为回调函数WindowButtonDown
set(gcf,'WindowButtonMotionFcn',@WindowButtonMotion);把当前界面鼠标移动响应设置为回调函数WindowButtonMotion
p=get(gca,'currentpoint'); 得到鼠标在当前坐标轴的位置

zhangenter你太善良了吧

善良是我的弱点,这都被你发现了