8楼: Originally posted by mygt_hit at 2016-09-25 14:11:03
句柄错误。h是图形窗口figure的句柄，而不是所画曲线对象的句柄，所以报错。楼下正确的代码在于给出了所画曲线对象的句柄h2，然后可以设置h2的线宽属性值。...

2楼: Originally posted by FMStation at 2016-09-24 18:56:53
GUI Alternative

Use File > Save As on the figure window menu to access the Save As dialog, in which you can select a graphics format.

x=rand(1,10);
y=1:10;
h=plot(x,y,'r',x,y,'g');
saveas(h, 'test','jpg');

h=figure;
x=rand(1,10);
y=1:10;
plot(x,y,'r',x,y,'g');
saveas(h, 'test','jpg');