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1、班级:姓名:M A TLAB大作业计算器?题目本题目通过MATLAB勺gui程序设计较为简单，在gui设计中主要用到三种 控件，文本编辑框（edit text ）,静态文本框（Static text ）,命令按钮（push button ）。然后在通过各个按钮的回调函数，实现简单的计算功能。? 1、功能介绍（1）具有友好的用户图形界面。实现十进制数的加、减、乘、除、乘方、开 方等简单计算。（2）具有科学计算函数，包括（反）正弦、（反）余弦、（反）正切、（反）余切、 开方、指数等函数运行。（注：三角函数计算的是弧度而不是角度 ）。（3）有清除键，能消除操作。? 2、功能实现程序由两个部分组成：M
2、ATLAB （.m文件）和GUI图形（.fig ）。程序使用的流程：直接利用图形界面中的按键键入所需数值、运算符等即可 得出结果。备注：软件版本： MATLAB 2011b首先用MATLAB GU功能，在绘制一个静态文本框和一个文本编辑框，以及33个命令按钮，调整好各控件大小、颜色，整体布局如图所示：（附录中有相关属性修改介绍）然后通过双击各个按钮来改写其属性，在m文件中编写其回调函数，最后在运行 调试。1.1 各功能界面设计GUI设计界面：注：底部边框用（Panel）工具添加，有两种设计顺序。（1、先 加底部边框，再在底部边框上画功能键。2、先画功能键，布好局，画底框，全选功能键拖动到底框上
3、。）2.2各功能模块实现（可根据需要增减功能键）算法设计：1.数字键设计：09以及小数点函数都一样，只是参数不同:例如：按键1响应：global jjtextString = get（handles.text1, String）;if (strcmp(textString, set(handles.text1,0. )=1)&(jj=0) String , 1);elsetextstring =strcat(textString, 1); set(handles.text1, String ,textString) end jj=0； 2.四则运算函数：+功能响应：textString = g
4、et(handles.text1, String); textString =strcat(textString, +);set(handles.text1, String ,textString)-功能响应：textString = get(handles.text1, String);textString =strcat(textString, -);set(handles.text1, String ,textString)x功能响应：textString = get(handles.text1, String);textString =strcat(textString, *);set
5、(handles.text1, String ,textString)功能响应：textString = get(handles.text1,String );textString =strcat(textString,/);set(handles.text1,String ,textString)3 .科学计算函数：例如：sin 功能响应：textString = get(handles.text1, String);0.尸=1)String ,0.);%f );String ,a)if (strcmp(textString, set(handles.text1, elsea = strre
6、ad(textString, a=sin(a);set(handles.text1, endN-1项的值来4 .退格键(DEL):通过取屏幕值，计算出其字符长度，然后取其前 实现退格：global jjtextString = get(handles.text1, String);if (strcmp(textString, set(handles.text1, else ss=char(textString); l=length(textString); textString=ss(1:l-1);0. )=1)&(jj=0)String ,0.);String ,textString)set
7、(handles.text1, end jj=0;5 .清屏键函数(AC): set(handles.text1, String , 0.);2.3各模块程序添加方法选中一个需添加程序的功能键，右击， View Callbacks , Callback ,出现如下图 所示界面。(红色框中为所需添加的程序)其他功能键添加方法类似。untkUrrEditor -(1)数字键:(2)四则运算函数:(3)科学计算函数:Cos0的计算结果：arctan2的计算结果:经过计算，这些结果均与实际结果相吻合，计算器的功能实现的较为完好。? 3、程序总结：(1)小数点可以连续输入。解决方法是：用 strfind
8、 函数查看文本框里有几个 小数点，如果已经有一个了，再按小数点就保持不变。(2)按过运算符号后一个数不等于一个数，比如：输入 1,按等号，会出来一 个3,经过长时间分析得知，这是由于在按运算符号时，系统记录了文本框里的 数但没有清空，才会出现这种问题。解决方法是再中请一个不同于加减乘除的另 一个符号，并将按过运算符后记录的数值置 0o? 4、心得体会：通过本次的MATLA既程设计，让我对MATLA既其是其GUI设计的功能有了 进一步的了解，认识到了它功能的强大。在 MATLA前单计算器的设计中，了解 了关于MATLAB0形用户界面的部分控件的使用方法； 利用MATLAB勺GUI提供的 很多实用
9、的控件，方便用于设计属于自己的图形界面和自己所需要实现的功能。? 5、附录：(1)功能块属性修改表(双击功能块可进入)(2)主要程序function varargout = untitled(varargin)%UNTITLED M- untitled.fig% UNTITLED, by itself, creates a new UNTITLEDor raises the existing% singleton*.% H = UNTITLED returns the handle to a new UNTITLED or the handle to% the existing singlet
10、on*.% UNTITLED(Property,Value,.)creates a newUNTITLEDusing the% given property value pairs. Unrecognized properties are passed via % varargin to untitled_OpeningFcn. This calling syntax produces a % warning when there is an existing singleton*.% UNTITLED(CALLBACK) and UNTITLED(CALLBACK,hObject,.) ca
11、ll the% local function named CALLBACK in UNTITLED.M with the given input% arguments.% *See GUI Options on GUIDEs 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 untitled% Last Modified by
12、GUIDE v2.5 19-Dec-2013 11:25:45% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct( gui_Name, m, .gui_Singleton , gui_Singleton, .gui_OpeningFcn , untitled_OpeningFcn, gui_OutputFcn , untitled_OutputFcn, gui_LayoutFcn , ,.gui_Callback , );if nargin & ischar(varargin1)gui_St
13、ate.gui_Callback = str2func(varargin1);end if nargoutvarargout1:nargout = gui_mainfcn(gui_State, varargin:);elsegui_mainfcn(gui_State, varargin:);end% End initialization code - DO NOT EDIT% - Executes just before untitled is made visible.function untitled_OpeningFcn(hObject, eventdata, handles, vara
14、rgin)% 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 unrecognized PropertyName/PropertyValue pairs from the% command line (see VARARGIN
15、)% Choose default command line output for untitledhandles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes untitled wait for user response (see UIRESUME)% uiwait(handles.figure1);global jj ;set(handles.text1, String ,0.);jj=0;% - Outputs from this function are retu
16、rned to the command line.function varargout = untitled_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 (s
17、ee GUIDATA)% Get default command line output from handles structure varargout1 = 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
18、MATLAB% handles structure with handles and user data (see GUIDATA) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 1);elsetextString =strcat(textString, 1 );set(handles.text1, String ,textString)endjj=0;% - Executes on button press in p
19、ushbutton2.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) global jjtextString = get(handles.text1, String);if (strcmp(te
20、xtString,0. )=1)&(jj=0)set(handles.text1,String , 2);elsetextString =strcat(textString, 2 );set(handles.text1, String ,textString)endjj=0;% - Executes on button press in pushbutton3.function pushbutton3_Callback(hObject, eventdata, handles)% hObject handle to pushbutton3 (see GCBO)% eventdata reserv
21、ed - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 3);elsetextString =strcat(textString, 3 );set(handles.text1, String ,textString
22、) endjj=0；% - 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 jjtextString
23、 = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 4);elsetextString =strcat(textString, 4);set(handles.text1, String ,textString)endjj=0;% - Executes on button press in pushbutton5.function pushbutton5_Callback(hObject, eventdata, handles)% hObject handle t
24、o pushbutton5 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 5);elsetextString =strcat(textString,
25、 5);set(handles.text1, String ,textString)endjj=0;% - 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 use
26、r data (see GUIDATA) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 6);elsetextString =strcat(textString, 6 );set(handles.text1, String ,textString)endjj=0;% - Executes on button press in pushbutton7.function pushbutton7_Callback(hObje
27、ct, 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) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,Strin
28、g , 7);elsetextString =strcat(textString, 7 );set(handles.text1, String ,textString)endjj=0;% - 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 MATL
29、AB% handles structure with handles and user data (see GUIDATA) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 8);elsetextString =strcat(textString, 8);set(handles.text1, String ,textString) end jj=0;% - Executes on button press in push
30、button9.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 jjtextString = get(handles.text1, String);if (strcmp(textS
31、tring,0. )=1)&(jj=0)set(handles.text1,String , 9);elsetextString =strcat(textString, 9);set(handles.text1, String ,textString) end jj=0;% - Executes on button press in pushbutton10.function pushbutton10_Callback(hObject, eventdata, handles)% hObject handle to pushbutton10 (see GCBO)% eventdata reser
32、ved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) global jjtextString = get(handles.text1, String);if (strcmp(textString,0. )=1)&(jj=0)set(handles.text1,String , 0);elsetextString =strcat(textString, 0);set(handles.text1, String ,textString
33、) end jj=0;% - 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) global jjtextS
34、tring = get(handles.text1, String);if (strcmp(textString,0.尸=1)set(handles.text1,String , 0.);jj=1;elsetextString =strcat(textString, . );set(handles.text1, String ,textString) end% - Executes on button press in pushbutton13.function pushbutton13_Callback(hObject, eventdata, handles)% hObject handle
35、 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.text1, String);textString =strcat(textString, / );set(handles.text1, String ,textString)% - Executes on button press in pu
36、shbutton14.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.text1, String);if (strcmp(textString
37、,0. )=1)set(handles.text1,String,();elsetextString =strcat(textString, ( );set(handles.text1, String ,textString) end% - Executes on button press in pushbutton16.function pushbutton16_Callback(hObject, eventdata, handles)% hObject handle to pushbutton16 (see GCBO)% eventdata reserved - to be defined
38、 in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) textString = get(handles.text1, String);if (strcmp(textString,0.尸=1)set(handles.text1,String,);elsetextString =strcat(textString, ) );set(handles.text1, String ,textString)end% - Executes on button press in p
39、ushbutton17.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.text1, String);textString =strcat(t
40、extString, - );set(handles.text1, String ,textString)% - 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 a
41、nd user data (see GUIDATA) textString = get(handles.text1, String);% if(strcmp(textString,0.)=1)% set(handles.text1,String,0.);% else% pushbutton20 b c = strread(textString, %f %c %f);% clear ans;% switch b% case *%ans=pushbutton20*c;% case /%if (c=0)% ans=Error Divided by zero;%else%ans=pushbutton2
42、0/c;%end% case -%ans=pushbutton20-c;% case +% ans=pushbutton20+c;% endans =eval(textString);set(handles.text1, String ,ans)% - Executes on button press in pushbutton19.function pushbutton19_Callback(hObject, eventdata, handles)% hObject handle to pushbutton19 (see GCBO)% eventdata reserved - to be d
43、efined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)textString = get(handles.text1, String);textString =strcat(textString, +);set(handles.text1, String ,textString)% - Executes on button press in pushbutton20.function pushbutton20_Callback(hObject, eventda
44、ta, handles)% hObject handle to pushbutton20 (see GCBO)% eventdata reserved - to be defined in a future version of MATLABString );% handles structure with handles and user data (see GUIDATA) textString = get(handles.text1,0.尸=1)String , 0.);%f );%strcmp(textString,0.) if (strcmp(textString, set(handles.text1, elsea = strread(textString, a=acot(a);set(handles.text1, String ,a) end% - Executes on button press in pushbutton21.function pushbutton21_Callback(