matlab简易计算器

电子信息工程系实验报告课程名称：MATLAB语言Array实验项目名称：MATLAB图形用户界面设计实验时间：2010-5-8 班级：姓名：学号：实验目的: 1、熟悉MATLAB的主要控件使用方法。

2、熟悉MATLAB的GUI设计流程。

实验环境:硬件配置（ Pentium(R) 4 CPU 2.40GHz,1GB内存）操作系统（Windows XP）编程软件：MATLAB7.0实验内容与结果：使用MATLAB的GUI接口设计一个简单的计算器。

效果图:程序源码部分函数及相关注释：%0~9数字键及小数点按钮代码范例%全局变量locaval用于存储用户输入的多位数值%全局变量gloval2用于存储待处理的第二位数值function pushbutton1_Callback(hObject, eventdata, handles)global locaval;a = get(handles.pushbutton1,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;guidata(hObject, handles);%运算符按钮处理“+、-、*、\”范例%全局变量flagnum存储运算符标志%全局变量global1用于储存第一个待处理数值function pushbutton10_Callback(hObject, eventdata, handles)a = get(handles.pushbutton10,'String');b = get(handles.text1,'String');set(handles.text1,'String',a);global flagnumglobal gloval1global locavallocaval=' ';flagnum=1;gloval1=b;guidata(hObject, handles);%取相反数按钮“+\-”代码%算法实现：用零减去文本框现在的值，再赋值给文本框function pushbutton14_Callback(hObject, eventdata, handles)global locaval;locaval=str2num(locaval);locaval=0-locaval;locaval=num2str(locaval);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;guidata(hObject, handles);% 等号按钮运算实现%根据flagnum运算标志用switch决策语句实现相应计算%需注意相应数据类型的转化function pushbutton17_Callback(hObject, eventdata, handles)global flagnumglobal gloval1global gloval2global locavallocaval=' ';gloval1=str2num(gloval1);gloval2=str2num(gloval2);case1=gloval1/gloval2;case2=gloval1*gloval2;case3=gloval1-gloval2;case4=gloval1+gloval2;case1=num2str(case1);case2=num2str(case2);case3=num2str(case3);case4=num2str(case4);switch flagnum;case 1set(handles.text1,'String',case1);case 2set(handles.text1,'String',case2);case 3set(handles.text1,'String',case3);case 4set(handles.text1,'String',case4);endguidata(hObject,handles)% BackSpace按钮函数%算法实现：MA TLAB是用矩阵存储数据的，相应的可以取文本框的前N-1实现其功能function pushbutton19_Callback(hObject, eventdata, handles)textString = get(handles.text1,'String');if(strcmp(textString,'0.')==1)set(handles.text1,'String','0.') ;elsess=char(textString);l=length(textString);textString=ss(1:l-1);set(handles.text1,'String',textString)endguidata(hObject,handles)%C清除按钮函数%把全局变量locaval清零function pushbutton20_Callback(hObject, eventdata, handles)global locavallocaval=' ';set(handles.text1,'String','0.');guidata(hObject,handles)%开平方函数function pushbutton22_Callback(hObject, eventdata, handles)textString = get(handles.text1,'String');textString=str2num(textString);textString=sqrt(textString);textString=num2str(textString);set(handles.text1,'String',textString);locaval=' ';guidata(hObject,handles)%取1/x函数function pushbutton24_Callback(hObject, eventdata, handles)global locavallocaval=str2num(locaval);locaval=1/locaval;set(handles.text1,'String',locaval);locaval=' ';guidata(hObject,handles)实验心得：！、通过MATLAB简单计算器的设计，初步了解了关于MATLAB图形用户界面的部分控件的使用方法。

2、MATLAB的GUI提供的很多实用的控件，方便用于设计属于自己的图形界面。

源码：function varargout = bt0(varargin)% BT0 M-file for bt0.fig% BT0, by itself, creates a new BT0 or raises the existing% singleton*.%% H = BT0 returns the handle to a new BT0 or the handle to% the existing singleton*.%% BT0('Property','Value',...) creates a new BT0 using the% given property value pairs. Unrecognized properties are passed via% varargin to bt0_OpeningFcn. This calling syntax produces a% warning when there is an existing singleton*.%% BT0('CALLBACK') and BT0('CALLBACK',hObject,...) call the% local function named CALLBACK in BT0.M with the given input% arguments.%% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)".%% See also: GUIDE, GUIDA TA, GUIHANDLES% Edit the above text to modify the response to help bt0% Last Modified by GUIDE v2.5 04-May-2010 14:01:00% Begin initialization code - DO NOT EDITglobal gloval1;global gloval2;global flagnum;global locaval;gui_Singleton = 1;gui_State = struct('gui_Name', mfilename, ...'gui_Singleton', gui_Singleton, ...'gui_OpeningFcn', @bt0_OpeningFcn, ...'gui_OutputFcn', @bt0_OutputFcn, ...'gui_LayoutFcn', [], ...'gui_Callback', []);if nargin & isstr(varargin{1})gui_State.gui_Callback = str2func(varargin{1});endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});elsegui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT% --- Executes just before bt0 is made visible.function bt0_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 GUIDA TA)% varargin unrecognized PropertyName/PropertyValue pairs from the% command line (see V ARARGIN)% Choose default command line output for bt0handles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes bt0 wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line. function varargout = bt0_OutputFcn(hObject, eventdata, handles)% varargout cell array for returning output args (see V ARARGOUT); % 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;% --- 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 GUIDA TA) global locaval;a = get(handles.pushbutton1,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;guidata(hObject, handles);% --- 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 GUIDA TA) global locaval;a = get(handles.pushbutton2,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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) global locavala = get(handles.pushbutton3,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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) global locavala = get(handles.pushbutton4,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA) global locavala = get(handles.pushbutton5,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA) global locavala = get(handles.pushbutton6,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA) global locavala = get(handles.pushbutton7,'String');locaval=strcat(locaval,a)set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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) global locavala = get(handles.pushbutton8,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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) global locavala = get(handles.pushbutton9,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA)a = get(handles.pushbutton10,'String');b = get(handles.text1,'String');set(handles.text1,'String',a);global flagnumglobal gloval1global locavallocaval=' ';flagnum=1;gloval1=b;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 GUIDA TA)a = get(handles.pushbutton11,'String');b = get(handles.text1,'String');set(handles.text1,'String',a);global flagnumglobal gloval1global locavallocaval=' ';flagnum=2;gloval1=b;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 GUIDA TA)a = get(handles.pushbutton12,'String');b = get(handles.text1,'String');set(handles.text1,'String',a);global flagnumglobal gloval1global locavallocaval=' ';flagnum=3;gloval1=b;guidata(hObject, handles);% --- If Enable == 'on', executes on mouse press in 5 pixel border.% --- Otherwise, executes on mouse press in 5 pixel border or over pushbutton13. function pushbutton13_ButtonDownFcn(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 GUIDA TA)global locavala = get(handles.pushbutton13,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA) global locavala = get(handles.pushbutton13,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=a;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 GUIDA TA) global locaval;locaval=str2num(locaval);locaval=0-locaval;locaval=num2str(locaval);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA) a = get(handles.pushbutton15,'String');set(handles.text1,'String',a);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)a = get(handles.pushbutton16,'String');b = get(handles.text1,'String');set(handles.text1,'String',a);global flagnumglobal gloval1global locavallocaval=' ';flagnum=4;gloval1=b;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 GUIDA TA) global flagnumglobal gloval1global gloval2global locavallocaval=' ';gloval1=str2num(gloval1);gloval2=str2num(gloval2);case1=gloval1/gloval2;case2=gloval1*gloval2;case3=gloval1-gloval2;case4=gloval1+gloval2;case1=num2str(case1);case2=num2str(case2);case3=num2str(case3);case4=num2str(case4);switch flagnum;case 1set(handles.text1,'String',case1);case 2set(handles.text1,'String',case2);case 3set(handles.text1,'String',case3);case 4set(handles.text1,'String',case4);endguidata(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 GUIDA TA)global locaval;a = get(handles.pushbutton18,'String');locaval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;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 GUIDA TA) textString = get(handles.text1,'String');if(strcmp(textString,'0.')==1)set(handles.text1,'String','0.') ;elsess=char(textString);l=length(textString);textString=ss(1:l-1);set(handles.text1,'String',textString)endguidata(hObject,handles)% --- 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 GUIDA TA) global locavallocaval=' ';set(handles.text1,'String','0.');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 GUIDA TA) global locavalglobal gloval1global gloval2locaval=' ';gloval1=' ';gloval2=' ';set(handles.text1,'String','0.');guidata(hObject,handles)% --- Executes on button press in pushbutton22.function pushbutton22_Callback(hObject, eventdata, handles)% hObject handle to pushbutton22 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDA TA) textString = get(handles.text1,'String');textString=str2num(textString);textString=sqrt(textString);textString=num2str(textString);set(handles.text1,'String',textString);locaval=' ';guidata(hObject,handles)% --- Executes on button press in pushbutton23.function pushbutton23_Callback(hObject, eventdata, handles)% hObject handle to pushbutton23 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDA TA) % --- Executes on button press in pushbutton24.function pushbutton24_Callback(hObject, eventdata, handles)% hObject handle to pushbutton24 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDA TA) global locavallocaval=str2num(locaval);locaval=1/locaval;set(handles.text1,'String',locaval);locaval=' ';guidata(hObject,handles)。