calculator.m

Matlab中用GUI设计一简单计算器。

function varargout = calculator(varargin)
% CALCULATOR M-file for calculator.fig
%      CALCULATOR, by itself, creates a new CALCULATOR or raises the existing
%      singleton*.
%
%      H = CALCULATOR returns the handle to a new CALCULATOR or the handle to
%      the existing singleton*.
%
%      CALCULATOR('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in CALCULATOR.M with the given input arguments.
%
%      CALCULATOR('Property','Value',...) creates a new CALCULATOR or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before calculator_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to calculator_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help calculator

% Last Modified by GUIDE v2.5 09-Nov-2006 14:58:00

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @calculator_OpeningFcn, ...
                   'gui_OutputFcn',  @calculator_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
% End initialization code - DO NOT EDIT


% --- Executes just before calculator is made visible.
function calculator_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to calculator (see VARARGIN)

% Choose default command line output for calculator
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes calculator wait for user response (see UIRESUME)
% uiwait(handles.figure1);
set(handles.figure1,'Name','Calculator');
handles.str='';
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Outputs from this function are returned to the command line.
function varargout = calculator_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;



function display_Callback(hObject, eventdata, handles)
% hObject    handle to display (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of display as text
%        str2double(get(hObject,'String')) returns contents of display as a double


% --- Executes during object creation, after setting all properties.
function display_CreateFcn(hObject, eventdata, handles)
% hObject    handle to display (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on button press in one.
function one_Callback(hObject, eventdata, handles)
% hObject    handle to one (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'1'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in tow.
function tow_Callback(hObject, eventdata, handles)
% hObject    handle to tow (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'2'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in three.
function three_Callback(hObject, eventdata, handles)
% hObject    handle to three (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'3'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in four.
function four_Callback(hObject, eventdata, handles)
% hObject    handle to four (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'4'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in five.
function five_Callback(hObject, eventdata, handles)
% hObject    handle to five (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'5'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in six.
function six_Callback(hObject, eventdata, handles)
% hObject    handle to six (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'6'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in seven.
function seven_Callback(hObject, eventdata, handles)
% hObject    handle to seven (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'7'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in eight.
function eight_Callback(hObject, eventdata, handles)
% hObject    handle to eight (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'8'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in add.
function add_Callback(hObject, eventdata, handles)
% hObject    handle to add (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'+'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in point.
function point_Callback(hObject, eventdata, handles)
% hObject    handle to point (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'.'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in zero.
function zero_Callback(hObject, eventdata, handles)
% hObject    handle to zero (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'0'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in nine.
function nine_Callback(hObject, eventdata, handles)
% hObject    handle to nine (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'9'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in dismiss.
function dismiss_Callback(hObject, eventdata, handles)
% hObject    handle to dismiss (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'-'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in multiple.
function multiple_Callback(hObject, eventdata, handles)
% hObject    handle to multiple (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'*'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in divide.
function divide_Callback(hObject, eventdata, handles)
% hObject    handle to divide (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'/'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);

% --- Executes on button press in result.
function result_Callback(hObject, eventdata, handles)
% hObject    handle to result (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
try
result=eval(handles.str);
set(handles.display,'String',result);
handles.str='';
guidata(hObject,handles);
catch
    errordlg(lasterr,'Error');
    handles.str='';
    guidata(hObject,handles);
    set(handles.display,'String','');
end


% --- Executes on button press in clear.
function clear_Callback(hObject, eventdata, handles)
% hObject    handle to clear (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
handles.str='';
guidata(hObject,handles);
set(handles.display,'String','');



% --- Executes on button press in right.
function right_Callback(hObject, eventdata, handles)
% hObject    handle to right (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,')'];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);


% --- Executes on button press in pushbutton19.
function pushbutton19_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton19 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


% --- Executes on button press in left.
function left_Callback(hObject, eventdata, handles)
% hObject    handle to left (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
str=handles.str;
current_str=[str,'('];
handles.str=current_str;
set(handles.display,'String',handles.str);
guidata(hObject,handles);