我使用32位R2012a版，32位windows 7系统模拟此程序时第一句出现错误，不知道是什么原因。第一次学习使用MATLAB，希望老师们能帮助，谢谢您们。

function Varargout=mygui_1002(varargin)

gui_Singleton=1;

gui_State=struct('gui Name',   mfilename,…

'gui_Singleton',  gui_Singleton,…

`gui_OpeningFcn',@mygui_1002_ OpeningFcn,…

'gui_OutputFcn',@mygui_1002_OutputFcn,…

'gui_LayoutFcn',[]，…

'gui_Callback',[]);

if nargin&&ischar(varargin{1})

gui_State.gui_Callback=str2func(varargin{1});

end

if nargout

[varargout{1:nargout}]=gui_mainfcn(gui_State, varargin{:});

else

gui_mainfcn(gui_State, varargin{:});

end

function mygui_1002_OpeningFcn(hObject, eventdata,handles, varargin)

set(handles.L_edit,'String',550);

set(handles.Z_edit,'String',1.5);

set(handles.A_edit,'String',0.1);

handles.output=hObject;

guidata(hObject, handles);

function varargout=mygui_1002_OutputFcn(hObject, eventdata, handles)

varargout{1}=handles.output;

function draw_pushbutton_Callback(hObject, eventdata, handles)

Lambda=str2num(get(handles.L_edit,'String'));

Lambda=Lambda*1e-9;

a=str2num(get(handles.A_edit,'String'));

a=a*0.001;

Z=str2num(get(handles.Z_edit,'String'));

ym=8*Lambda*Z/a;

Ny=71;

ys=linspace(-ym,ym,Ny);

NP=71;

yP=linspace(-a/2,a/2,NP);

for j=1:Ny

L=sqrt((y(j)-yP).^2+Z.^2);

Phi=2*pi.*(L-Z)./Lambda;

SumCos=sum(cos(Phi));

SumSin=sum(sin(Phi));

B(j)=(SumCos^2+SumSin^2)/NP^2;

end

plot(y,B,'*',y,B);grid

axis([-ym,ym,0.0,1.0]);

title('衍射光强图’);

xlabel('y(m)'); ylabel('I/I0');

set(gcf,'color','w')

function close_pushbutton_Callback(hObject, eventdata, handles)

close

function L_edit_Callback(hObject,eventdata,handles)

function L_edit_CreateFcn(hObject,eventdata,handles)

if ispc&&isequal(get(hObject,'BackgroundColor'),

get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

elld

function A_edit_Callback(hObject,eventdata,handles)

function A_edit_CreateFcn(hObject,eventdata,handles)

if ispc&&isequal(get(hObject,'BackgroundColor'),

get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function Z_edit_Callback(hObject,eventdata,handles)

function Z_edit_CreateFcn(hObject,eventdata,handles)

if ispc&&isequal(get(hObject,'BackgroundColor'),

get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end