1、精選優質文檔-傾情為你奉上目錄計算器的效果圖:一、GUI設計界面：1.打開GUI輸入Guide 回車或者在工具欄上點擊圖標打開Guide 窗口：2.添加按鈕3.根據按鈕的作用及視覺效果做一定的修改：雙擊按鈕（Puch Button）進入按鍵屬性修改顯示字符串大小、字體和顏色，然后對按鈕的位置進行排布，盡量使按鈕集中在靜態文本框下面。4.保存、添加功能函數 把做好的按鈕及靜態文本框保存后自動彈出Editor的M文本，對然后對相應的pushbutton添加功能函數。以下是相應按鈕的功能函數。（1）數字鍵編寫在function pushbutton1_Callback(hObject, eventd

2、ata, handles）下輸入：textString = get(handles.text1,'String');textString =strcat(textString,'0');set(handles.text1,'String',textString)這是使用句柄handles指向對象text1，并以字符串形式來存儲數據文本框text1的內容，并存儲數個“0”，然后由set(handles.text1,'String','textString'在text1中輸出。同理，分別在function pushbu

3、tton210_Callback(hObject, eventdata, handles）下給19數字按鍵下編寫此類程序。（2）符號鍵的編寫function pushbutton12_Callback(hObject, eventdata, handles)textString = get(handles.text1,'String');textString =strcat(textString,'÷');set(handles.text1,'String',textString)strcat的作用是將兩個字符串連接起來，就是在已輸入的

4、存儲數據textString后添加“÷”進行運算。然后執行set(handles.text1,'String',textString)。符號鍵-、*、/與÷的運算函數類似。“平方運算”,主要是由“2”功能實現。（3）運算符“=”的編寫textString = get(handles.text1,'String');ans =eval(textString);“eval”的作用是將符號表達式轉換成數值表達式。再由set(handles.text1,'String',ans)輸出。（4）按鍵“back”的編寫textString=

5、get(handles.text1, 'String')w=length(textString)t=char(textString)textString=t(1:w-1) %將w個字符串轉成w-1個，即刪除了末位字符set(handles.text1,'String',textString)（5）按鍵“清空”的編寫set(handles.text1,'String','')（6）按鍵“退出”的編寫close(gcf);（7）按鍵“二進制數轉十進制數”的編寫 textString=get(handles.text1,'Str

6、ing')e = bin2dec(textString); set(handles.text1,'String',e);（8）按鍵“十進制數轉二進制數”的編寫 textString = get(handles.text1,'String');textString = strcat(textString,'dec2bin(');set(handles.text1,'String',textString)二、計算器的使用除法運算（÷） 專心-專注-專業平方運算（2）函數cos （/3） 的計算 函數arctan （/

7、3） 的計算 以2為底的對數的計算（log 2） 十進制數轉二進制數的計算（調用dec2bin函數）二進制數轉十進制數的計算（調用bin2dec函數） 經過計算，這些結果均與實際結果相吻合，計算器的功能實現的完好且能實現較大數值的運算，計算結果用科學技術法表示。三、附各按鍵的程序源代碼按鍵“0-9、+、-、×、÷、.、= 、x2 ”（通過get函數獲得輸入的字符，函數strcat 獲得相應字符,并用set函數進行顯示輸出）：function pushbutton1_Callback(hObject, eventdata, handles)textString=get(han

8、dles.text1,'String')textString=strcat(textString,'0')set(handles.text1,'String',textString)function pushbutton2_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'1')set(handles.text1,'String',textS

9、tring)function pushbutton3_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'2')set(handles.text1,'String',textString)function pushbutton4_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String'

10、)textString=strcat(textString,'3')set(handles.text1,'String',textString)function pushbutton5_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'4')set(handles.text1,'String',textString)function pushbutton6_

11、Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'5')set(handles.text1,'String',textString)function pushbutton7_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textStri

12、ng,'6')set(handles.text1,'String',textString)function pushbutton8_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'7')set(handles.text1,'String',textString)function pushbutton9_Callback(hObject, eventdata

13、, handles)textString=get(handles.text1,'String')textString=strcat(textString,'8')set(handles.text1,'String',textString)function pushbutton10_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'9')set(handles

14、.text1,'String',textString)function pushbutton11_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'+')set(handles.text1,'String',textString)function pushbutton12_Callback(hObject, eventdata, handles)textString=get

15、(handles.text1,'String')textString=strcat(textString,'-')set(handles.text1,'String',textString)function pushbutton13_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'*')set(handles.text1,'String',

16、textString)function pushbutton14_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'/')set(handles.text1,'String',textString)function pushbutton15_Callback(hObject, eventdata, handles)textString=get(handles.text1,'Stri

17、ng')textString=strcat(textString,'.')set(handles.text1,'String',textString)按鍵“=” ：function pushbutton16_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')s=eval(textString)set(handles.text1,'String',s)按鍵“x2” ： function pushbutton17_Callbac

18、k(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'2')set(handles.text1,'String',textString)退位鍵“back”：function pushbutton18_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')w=length(textString)t=

19、char(textString)textString=t(1:w-1)set(handles.text1,'String',textString)清空鍵：function pushbutton19_Callback(hObject, eventdata, handles)set(handles.text1,'String','')退出鍵：function pushbutton20_Callback(hObject, eventdata, handles)close(gcf);% hObject handle to pushbutton20 (se

20、e GCBO)% handles structure with handles and user data (see GUIDATA)科學計算函數：按鍵“”：通過get函數獲得輸入的字符，函數strread獲得輸入字符,并用sqrt函數計算結果，set函數進行顯示輸出textString = get(handles.text1,'String');if(strcmp(textString,'0')=1) set(handles.text1,'String','0') ;elsea = strread(textString, 

21、9;%f');a=sqrt(a);set(handles.text1,'String',a)end按鍵“sin” （通過get函數獲得輸入的字符，函數strread獲得輸入字符,并用sin函數計算結果，set函數進行顯示輸出）：textString = get(handles.text1,'String');textString = strcat(textString,'sin(');set(handles.text1,'String',textString)按鍵“cos” ：textString = get(handle

22、s.text1,'String');textString = strcat(textString,'(');set(handles.text1,'String',textString)按鍵“tan” ： textString = get(handles.text1,'String');if(strcmp(textString,'1.57')=1)|(strcmp(textString,'-1.57')=1) set(handles.edit1,'String','inf

23、9;);elsetextString = strcat(textString,'tan(');set(handles.text1,'String',textString)end按鍵“arcsin” ： textString = get(handles.text1,'String');textString = strcat(textString,'asin(');set(handles.text1,'String',textString)按鍵“arccos” ： textString = get(handles.te

24、xt1,'String');textString = strcat(textString,'acos(');set(handles.text1,'String',textString)按鍵“arctan” ： textString = get(handles.text1,'String');textString = strcat(textString,'atan(');set(handles.text1,'String',textString)按鍵“log2” ： textString = get(

25、handles.text1,'String');if(strcmp(textString,'0')=1) set(handles.text1,'String','error') ;elsea = strread(textString, '%f');a=log2(a);set(handles.text1,'String',a)end按鍵“(” ： textString = get(handles.text1,'String');textString = strcat(textStrin

26、g,' (');set(handles.text1,'String',textString)按鍵“)” ： textString = get(handles.text1,'String');textString = strcat(textString,')');set(handles.text1,'String',textString)按鍵“二進制數轉十進制數” ：textString=get(handles.text1,'String')e = bin2dec(textString); set(h

27、andles.text1,'String',e);按鍵“十進制數轉二進制數” ：textString = get(handles.text1,'String');textString = strcat(textString,'dec2bin(');set(handles.text1,'String',textString)四、問題和解決方法1.本次課程設計中開始時遇到的問題是數據進行清零后，再輸入其他的數據，清零后的字符0仍會保留，會影響其他數據，解決辦法是將數據用空格替換掉就實現了清空: set(handles.text1,'String','')2.在定義正弦余弦等函數的時候，需要注意其定義域，值域的問題。3開始時我的“sin” 函數編程如下：textString = get(handles.