matlab简易计算器

1、电子信息工程系实验报告课程名称：MATLA即言成 绩：指导教师(签名)实验项目名称：MATLA招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勺主要控件使用方法。2、熟悉MATLAB勺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：%09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

2、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

3、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,

4、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%

5、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=gl

6、oval1+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',

7、case4);endguidata(hObject,handles)N-1实现其功能% Backspace按钮函数%算法实现：MATLAB是用矩阵存储数据的，相应的可以取文本框的前function pushbutton19_Callback(hObject, eventdata, handles)textstring = get(handles.text1,'String');if(strcmp(textString,'0.')=1)set(handles.text1,'String','0.');elsess=char(text

8、String);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(hObje

9、ct,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,hand

10、les)%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

11、的图形界面。 源码：function varargout = btO(varargin)% BTO M-file for btO.fig% BTO, by itself, creates a new BTO or raises the existing% singleton*.% H = BTO returns the handle to a new BTO or the handle to% the existing singleton*.% BT0('Property','Value',.) creates a new BT0 using the% give

12、n property value pairs. Unrecognized properties are passed via% varargin to bt0_OpeningFcn. This calling syntax produces a% warning when there is an existing singleton*.%BTO('CALLBACK') and BT0('CALLBACK',hObject,.) call the% local function named CALLBACK in BT0.M with the given inpu

13、t%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

14、 - DO NOT EDITglobal glovall;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', ,.'g

15、ui_Callback', );if nargin & isstr(varargin1)gui_State.gui_Callback = str2func(varargin1);endif nargoutvarargout1: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

16、bt0_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn.% hObject% eventdata% handles% varargin%handle to figurereserved - to be defined in a future version of MATLAB structure with handles and user data (see GUIDA TA) unrecognized PropertyName/Propert

17、yValue pairs from thecommand line (see VARARGIN)% Choose default command line output for bt0 handles.output = hObject;% Update handles structure guidata(hObject, handles);% UIWAIT makes bt0 wait for user response (see UIRESUME)% uiwait(handles.figurel);% - Outputs from this function are returned to

18、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 GUIDAT

19、A) % Get default command line output from handles structure varargout1 = handles.output;% - Executes on button press in pushbuttonl.function pushbutton1_Callback(hObject, eventdata, handles)% hObject handle to pushbutton1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB %

20、 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

21、 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(loc

22、aval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;guidata(hObject, handles);% - Executes on button press in pushbuttons.function pushbutton3_Callback(hObject, eventdata, handles)% hObject handle to pushbuttons (see GCBO)% eventdata reserved - to be defined in a future

23、 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 pu

24、shbutton4.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');loc

25、aval=strcat(locaval,a);set(handles.text1,'String',locaval);global gloval2gloval2=locaval;guidata(hObject, handles);% - Executes on button press in pushbuttons.function pushbutton5_Callback(hObject, eventdata, handles)% hObject handle to pushbuttons (see GCBO)% eventdata reserved - to be defi

26、ned 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 but

27、ton press in pushbuttons.function pushbutton6_Callback(hObject, eventdata, handles)% hObject handle to pushbuttons (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,'

28、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 pushbutton? (see GCBO)% eventdata reser

29、ved - 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);% -

30、Executes on button press in pushbuttons.function pushbutton8_Callback(hObject, eventdata, handles)% hObject handle to pushbuttons (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.pus

31、hbutton8,'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)% e

32、ventdata 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,

33、 handles);% - Executes on button press in pushbuttonlO.function pushbutton1O_Callback(hObject, eventdata, handles)% hObject handle to pushbutton1O (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

34、.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 pushbuttonll.function pushbutton11_Callback(hObject,

35、 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,'

36、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 def

37、ined 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;

38、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 rese

39、rved - 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);%

40、 - 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(hand

41、les.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 GCB

42、O)% 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(hObje

43、ct, 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(hand

44、les.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 versi

45、on 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 glovallglobal locavallocaval=''flagnum=4;gloval1=b;guidata(hObject, handl

46、es);% - 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

47、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(

48、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, eventd

49、ata, 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,'Strin

50、g',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 stru

51、cture 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)endgu

52、idata(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 locaval lo