关于曲线设置和坐标设置
 

set(gca,'xlim',[-1.2,1.2],'ylim',[-1.2,1.2],'YTick',[-1,0,1],'XTick',[-1,0,1],'drawmode','fast','visible','on','nextplot','add');
line('color','r','marker','.','markersize',40,'erase','xor','xdata',[],'ydata',[]);
里面各项设置时啥意思，求高手解答下，谢谢:confused: