[horse.wang]

我在matlab命令窗口输入以下程序


fig=figure('position',[400 300 350 300],'name','radio button 范例','menubar','none');
axes('position',[0.35 0.15 0.6 0.75]);
x=linspace(0,2*pi);
y=sin(x);
p=plot(x,y);
radio_h(1)=uicontrol(fig,'style','radio','position',[15 200 80 30],'string','square','callback',['if get(gcbo,"value")==1;','set(radio_h(radio_h~=gcbo),"value",0);','end;','set(p,"linstyle","s");']);


目的是绘制一个正弦函数图出来之后，能够用radio button控制它的图线的形式为square，但是当我点击radio button 时出现了下面的报警，

Error: The input character is not valid in MATLAB statements or expressions.
Error while evaluating uicontrol Callback.
请问这是怎么回事啊？