matlab脚本 gui设计基础

h0 = figure('toolbar','none',...
    'position',[200 150 450 250],...
    'name','gui_mytry',...
    'numbertitle','off');
x = 0:0.5:2*pi;
y = sin(x);
h = plot (x,y);
grid on;
hm = uicontrol(h0,'style','text',...
    'string','绘图函数',...
    'position',[380 180 50 20]);
hm =uicontrol(h0,'style','popupmenu',...
    'string',...
    'sin(x)|cos(x)|sin(x)+cos(x)',...
    'position',[380 150 50 20]);
set(hm,'value',1)
my_callback = [...
    'v=get(hm,"value");,',...
    'switch  v,',...
    'case 1,',...
    'delete(h),',...
    'y = sin(x);,',...
    'h = plot(x,y);,',...
    'grid on,'...
   'case 1,',...
    'delete(h),',...
    'y = sin(x);,',...
    'h = plot(x,y);,',...
    'grid on,'...
    'case 2,',...
    'delete(h),',...
    'y = cos(x);,',...
    'h = plot(x,y);,',...
    'grid on,'...
     'case 3,',...
    'delete(h),',...
    'y = sin(x)+cos(x);,',...
    'h = plot(x,y);,',...
    'grid on,'...
    'end'];
set(hm,'callback',my_callback);
set(gca,'position',[0.2 0.2 0.6 0.6]);

　　

function[] = example();
S.fh=figure('units','normalized',...
    'position',[0.1 0.1 0.3 0.3],...
    'menubar','none',...
    'name','exmaple',...
    'numbertitle','off',...
    'resize','off');
S.text=uicontrol('style','text',...
    'unit','normalized',...
    'position',[0.1 0.85 0.4 0.05],...
    'string','change color');
S.pop=uicontrol('style','popupmenu',...
    'unit','normalized',...
    'position',[0.6 0.8 0.3 0.1],...
    'string',{'red';'green';'blue';...
        'yellow';'black';'cyan';'magenta'});
S.axes = axes('unit','normalized',...
    'position',[0.1 0.1 0.8 0.7]);
x=0:pi/50:8*pi;
y=sin(x);
axes(S.axes);
S.hplot=plot(x,y,'color',[1 0 0]);
set(S.pop,'callback',{@mycallback,S});
   
function mycallback(obj,event,S)
val = get(obj,'Value');
switch val 
    case 1
        set(S.hplot,'color',[1 0 0]);
    case 2
        set(S.hplot,'color',[0 1 0]);
    case 3
        set(S.hplot,'color',[0 0 1]);
    case 4
        set(S.hplot,'color',[1 1 0]);
    case 5
        set(S.hplot,'color',[0 0 0]);
    case 6
        set(S.hplot,'color',[0 1 1]);
    case 7
        set(S.hplot,'color',[1 0 1]);
end