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文章目录
1.先打开matlab新建GUI文件2.选择路径（左边是默认的不用改）3.此时界面会弹出一个小框4.建立计算器界面（贴上我设计的界面，不许嘲笑我的设计）5.细致讲解一下，这里的按键和显示框的是怎么实现的6.把界面雏形做出之后，我们需要去实现计算器的操作7.初始化操作
1.先打开matlab新建GUI文件
2.选择路径（左边是默认的不用改）
然后点击ok
3.此时界面会弹出一个小框
4.建立计算器界面（贴上我设计的界面，不许嘲笑我的设计）
5.细致讲解一下，这里的按键和显示框的是怎么实现的
A.显示框： 选择edit text  在右边屏幕拉取即可  如图所示，新建两个即可，左边作为输入屏，右边作为输入结果的显示屏 双击该框，弹出一个窗口，窗口下拉，里面有该显示框的属性  string值为显示框显示的值 Tag为显示框的名字 （现在这个计算器需要显示框和输出框，如果没有新建其他的edit框，默认新建的第一个edit框的名字为edit1，第二个为edit2）
B.数字按钮和字符按钮 点击push button 新建按钮，需要几个建几个  双击之后在string那一栏改成你所需要的按钮  回车之后，如图所示 
6.把界面雏形做出之后，我们需要去实现计算器的操作
A.首先改0~9的数字键（需要点击后在edit1上显示该数字） 右键点击你需要改的button之后会出现一个窗口选择view callbacks->callback，然后会打开一个函数，蓝色字体所在的位置是该button所在的位置的代码  按照这个方式将自己的代码改成自己所需要的数字 handles.后面加的是自己所需要将显示的文本框的名字
textString = get(handles.edit1,‘String’); textString = strcat(textString,‘6’); set(handles.edit1,‘String’,textString); guidata(hObject, handles);
B.对于计算符号 
textString = get(handles.edit1,‘String’); textString = strcat(textString,’+’); set(handles.edit1,‘String’,textString); guidata(hObject, handles);
加减乘除只需用换一下就好 C.对于AE操作 
textString = get(handles.edit1,‘String’); textString = get(handles.edit2,‘String’); set(handles.edit1,‘String’,’’); set(handles.edit2,‘String’,’’); guidata(hObject, handles);
D.对于back操作 
textString=get(handles.edit1,‘String’); as=char(textString); n=length(textString); textString=as(1:n-1); set(handles.edit1,‘String’,textString) guidata(hObject, handles);
E.退出操作 
close(gcf);
7.初始化操作
A.需要对edit1和edit2进行初始化，使代码运行时，文本框里为空白（需要在opening里改函数） 
set(handles.edit1,‘string’,’’); set(handles.edit2,‘string’,’’);
B.需要将edit1的结果在edit2中显示出来（需要改计算那个button的函数值） 
textString = get(handles.edit1,‘String’); aa = eval(textString); set(handles.edit2,‘String’,aa); guidata(hObject, handles);
使其显示在edit2上 点击运行即可实现计算器。 
function varargout = text2(varargin)
% TEXT2 MATLAB code for text2.fig
% TEXT2, by itself, creates a new TEXT2 or raises the existing
% singleton*.
%
% H = TEXT2 returns the handle to a new TEXT2 or the handle to
% the existing singleton*.
%
% TEXT2('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in TEXT2.M with the given input arguments.
%
% TEXT2('Property','Value',...) creates a new TEXT2 or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before text2_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to text2_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 text2
% Last Modified by GUIDE v2.5 28-May-2018 19:45:49
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @text2_OpeningFcn, ...
'gui_OutputFcn', @text2_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 text2 is made visible.
function text2_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 text2 (see VARARGIN)
% Choose default command line output for text2
set(handles.edit1,'string','');
set(handles.edit2,'string','');
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes text2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = text2_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 edit1_Callback(hObject, eventdata, handles)
% hObject handle to edit1 (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 edit1 as text
% str2double(get(hObject,'String')) returns contents of edit1 as a double
% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
aa = eval(textString);
set(handles.edit2,'String',aa);
guidata(hObject, handles);
function edit2_Callback(hObject, eventdata, handles)
% hObject handle to edit2 (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 edit2 as text
% str2double(get(hObject,'String')) returns contents of edit2 as a double
% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit2 (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 pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'7');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'8');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'9');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton5 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'4');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton6.
function pushbutton6_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton6 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'5');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton7 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'6');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton8 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'1');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton9.
function pushbutton9_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton9 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'2');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton10.
function pushbutton10_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton10 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'3');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton11.
function pushbutton11_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton11 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'0');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton12.
function pushbutton12_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton12 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'+');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton13.
function pushbutton13_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton13 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = get(handles.edit2,'String');
set(handles.edit1,'String','');
set(handles.edit2,'String','');
guidata(hObject, handles);
% --- Executes on button press in pushbutton14.
function pushbutton14_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton14 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'-');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton15.
function pushbutton15_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton15 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'*');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton16.
function pushbutton16_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton16 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'/');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton17.
function pushbutton17_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton17 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'4');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
% --- Executes on button press in pushbutton18.
function pushbutton18_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton18 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'7');
set(handles.edit1,'String',textString);
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)
close(gcf);
% --- Executes on button press in pushbutton20.
function pushbutton20_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton20 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString=get(handles.edit1,'String');
as=char(textString);
n=length(textString);
textString=as(1:n-1);
set(handles.edit1,'String',textString)
guidata(hObject, handles);
% --- Executes on button press in pushbutton21.
function pushbutton21_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton21 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
textString = get(handles.edit1,'String');
textString = strcat(textString,'.');
set(handles.edit1,'String',textString);
guidata(hObject, handles);
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