gui_exam1.m

Matlab可视化界面设计与控件使用源代码名称：exam 调试环境：Win XP；Matlab 6.5

function varargout = GUI_exam1(varargin)
global handles
if nargin == 0  
	fig = openfig(mfilename,'reuse');
	set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));
    set(fig,'Name','GUIDE环境编程实例：绘制图形y=sin(x)^3')
	handles = guihandles(fig);
	guidata(fig, handles);
	if nargout > 0
		varargout{1} = fig;
	end
elseif ischar(varargin{1}) 
	try
		if (nargout)
			[varargout{1:nargout}] = feval(varargin{:}); 
		else
			feval(varargin{:}); 
		end
	catch
		disp(lasterr);
	end
end
% --------------------------------------------------------------------
function varargout = pushbutton_plot_Callback(h, eventdata, handles, varargin)
x=0:pi/30:2*pi;
y=sin(x).^3;
axes(handles.axes_plot)                % 通过axes(handles.axes_plot)语句，指定坐标轴绘图
plot(x,y)
axis([0 2*pi -1.2 1.2])
% --------------------------------------------------------------------
function varargout = pushbutton_grid_Callback(h, eventdata, handles, varargin)
a=get(handles.pushbutton_grid,'String');     % 通过访问句柄pushbutton_grid获取其Sting属性
switch a
case 'grid on'                       % 如果String为grid on，则在原图的基础上画出网格线
    axes(handles.axes_plot)          % 指定坐标轴axes_plot
    grid on                        % 添加网络线
    set(handles.pushbutton_grid,'String','grid off');      % 通过访问句柄pushbutton_grid
                                               % 重新设置其Sting属性为grid off 
case 'grid off'                       % 如果String为grid off，则取消网格线
    axes(handles.axes_plot)           % 指定坐标轴axes_plot
    grid off                        % 取消网络线
    set(handles.pushbutton_grid,'String','grid on')       % 通过访问句柄pushbutton_grid
                                               % 重新设置其Sting属性为grid on 
end
% --------------------------------------------------------------------
function varargout = pushbutton_exit_Callback(h, eventdata, handles, varargin)
ss=questdlg('确定退出吗？','感谢您的使用',...
    '是的,我不用了','不,我想再看看','是的,不用了');  % 调用询问对话框
switch ss,                                                   
case '是的,我不用了',             % 用户若选择退出，则结束运行程序
    delete(handles.figure1);
end