簡單計算器可視化程序編程

1、簡單計算器、根本功能描述二進制、八進制、十進制及十六進制數(shù)的加、減、乘、除、乘方、取模等簡單計算科學計算函數(shù),包括反正弦、反余弦、反正切、反余切、開方、指數(shù)等函數(shù)運行以角度、弧度兩種方式實現(xiàn)上述局部函數(shù)具備歷史計算的記憶功能對不正確的表達式能指出其錯誤原因二、流程圖三、輸入數(shù)據(jù)子函數(shù)圖1輸入數(shù)據(jù)子函數(shù)流程圖設(shè)計步驟翻開MicrosoftVisualC+,在文件中點擊新建,在彈出框內(nèi)選擇MFCAppWizardexe工程,輸入工程名Calculter及其所在位置,點擊確定,如圖3所示.圖3新建MFCAppWizardexe工程將彈出MFCAppWizard-step1對話框,選擇根本對話框,點擊

2、完成,如圖4所示.圖4根本對話框這樣,MFCAppWizard就建立了一個基于對話窗口的程序框架,如圖5所示.圖5新建的對話框四、界面設(shè)計1、創(chuàng)立控件在圖5所示的ResoureView選項卡中翻開Dialog資源組,雙擊IDD_CALCULATOR_DIALOG在右邊的窗口中顯示出待編輯的對話框.開始擺放控件,包括編輯框和按鈕的創(chuàng)立.按鈕的創(chuàng)立以“1為例進行介紹,其他按鈕的創(chuàng)立可參照此進行操作.1在圖5中Controls的編輯框按鈕上單擊鼠標左鍵,在對話框編輯窗口上適宜的位置按下鼠標左鍵并拖動鼠標畫出一個大小適宜的編輯框.在編輯框上單擊鼠標右鍵,在彈出的快捷萊單中選擇屬性選項,此時彈出Edit

3、屬性對話框,如圖6所示,在該對話框中輸入ID屬性.圖6Edit屬性對話框2在圖3中Controls的“Button按鈕上單擊鼠標左鍵,在對話框上的適宜的位置上按下鼠標左鍵并拖動鼠標畫出一個大小適宜的下壓式按鈕.在按鈕上單擊鼠標右鍵,在彈出的快捷菜單中選擇屬性選項,此時也彈出PushButton屬性對話框,如圖7所示,在該對話框中輸入控件的ID值和標題屬性.圖7PushButton屬性根據(jù)上面的操作過程編輯其他按鈕和編輯框等對象的屬性.表1各按鈕和編輯框等對象的屬性對象ID標題或說明編輯框IDC_DC_EDIT_INPUT結(jié)果顯示按鈕IDC_BUTTON11按鈕IDC_BUTTON22按鈕IDC

4、_BUTTON33按鈕IDC_BUTTON44按鈕IDC_BUTTON55按鈕IDC_BUTTON66按鈕IDC_BUTTON77按鈕IDC_BUTTON88按鈕IDC_BUTTON99按鈕IDC_BUTTON100按鈕IDC_BUTTON11.按鈕IDC_BUTTON12空格按鈕IDC_BUTTON23-按鈕IDC_BUTTON26*按鈕IDC_BUTTON27/按鈕IDC_BUTTON38sqrt按鈕IDC_BUTTON30%按鈕IDC_BUTTON25A按鈕IDC_BUTTON31sin按鈕IDC_BUTTON32cos按鈕IDCBUTTON33tan按鈕IDC_BUTTON34cot按

5、鈕IDC_BUTTON40sin-1按鈕IDCBUTTON41cos-1按鈕IDCBUTTON35log按鈕IDC_BUTTON36In按鈕IDCBUTTON14a按鈕IDCBUTTON15b按鈕IDCBUTTON16c按鈕IDCBUTTON17d按鈕IDCBUTTON18e按鈕IDCBUTTON19f按鈕IDCBUTTON13退格按鈕IDCBUTTON37eA按鈕IDC_BUTTON22清空按鈕IDOK計算按鈕IDC_RADIO_DEGREE角度按鈕IDC_RADIO_RADIAN弧度按鈕IDC_STATIC計算結(jié)果按鈕IDC_BTN_HISTREXP歷史表達式按鈕IDCANCEL退出按鈕I

6、DC_BTN_CONVERT進制完成后界面如圖8所小圖8計算器界面五、計算器源程序代碼;elseif(decimal>16)(for(inti=();i<decimal;i+)str+="0"str+=".0"else(for(inti=0;i<-decimal;i+)(0,"0");(0,".");if(sign=1)(0,"-");returnstr;doubleCCalculation:StoN(CStringstr)(char*stopstring;doublex;x=

7、strtod(0),&stopstring);m_strTmp=stopstring;returnx;CStringCCalculation:TwoE(CStringstrExp)(doublex2,y,x1=StoN(strExp);strExp=m_strTmp;charop=(0);(0);x2=StoN(strExp);if(m_strTmp!="")return"ERROR_"+m_strTmp+未知符號_;if(op='+')y=x1+x2;elseif(op='*')y=x1*x2;elseif(op

8、="-')y=x1-x2;elseif(op='A')y=pow(x1,x2);elseif(op="/")y=x1/x2;elseif(op='%')y=fmod(x1,x2);elsereturn"ERROR_"+m_strTmp+"未知運算符_"returnNtoS(y);CStringCCalculation:SingleE(CStringop,doubledx)if(op="ln")returnNtoS(log(dx);elseif(op="lo

9、g")returnNtoS(log10(dx);elseif(op="sqr")returnNtoS(sqrt(dx);elseif(op="eA")returnNtoS(exp(dx);elseif(op="abs")returnNtoS(fabs(dx);elseif(op="ac")returnNtoS(acos(dx);elseif(op="as")returnNtoS(asin(dx);elseif(op="at")returnNtoS(atan(dx);

10、if(m_bDegree)dx=dx*PI/180;if(op="tan")(returnNtoS(tan(dx);)elseif(op="sin")(returnNtoS(sin(dx);)elseif(op="cos")(returnNtoS(cos(dx);)elseif(op="cot")(returnNtoS(1/tan(dx);)elseif(op="sh")(returnNtoS(sinh(dx);)elseif(op="ch")(returnNtoS(cosh

11、(dx);)elseif(op="th")(returnNtoS(sinh(dx)/cosh(dx);)elseif(op="exp")(returnNtoS(pow(10,dx);)return"ERROR"+op+"_未知函數(shù)_;)intCCalculation:LocateLBra(CStringstrExp)(intlen=();intpos=-1;for(inti=0;i<len;i+)(if(pos>=0&&(i)=')')break;if(i)='('

12、)(pos=i;returnpos;voidCCalculation:DelBracket(CString*strExp)intpos=LocateLBra(*strExp);inti,len=strExp->GetLength();if(pos=-1)*strExp="ERROR_無效表達式_"return;for(i=pos;i<len;i+)if(strExp->GetAt(i)=')')break;CStringstr;str=strExp->Mid(pos+1,i-pos-1);MultiE(&str);strExp

13、->Delete(pos,i-pos+1);strExp->Insert(pos,str);voidCCalculation:MultiE(CString*strExp)II.if(strExp->IsEmpty()*strExp="ERROR_函數(shù)表達式為空if(IsDigital(*strExp)return;while(1)/*處理所有的一元運算*/for(inti=0;i<FUNCNUM;i+)intpos=strExp->Find(opti);if(pos!=-1)CStringstr=strExp->Right(strExp->G

14、etLength()-pos-opti.GetLength();doubledx=StoN(str);if(m_strTmp=str)*strExp="ERROR"+str+"_無法識別的函數(shù)_"return;strExp->Delete(pos,strExp->GetLength()-pos);*strExp+=SingleE(opti,dx)+m_strTmp;MinusMinus(strExp);if(pos>=1)charch=strExp->GetAt(pos-1);if(ch>=48&&ch<

15、;=57)*strExp="ERROR_缺少二元運算符_"return;break;if(i=FUNCNUM)break;ind('-');if(tmpos=-1)break;elsepos+=tmpos;if(pos=0&&strExp->GetAt(pos+1)='-'11Pos>0)(if(strExp->GetAt(pos+1)="+')(strExp->Delete(pos+1);pos=0;continue;)/*處理連減(如：1)的情況*/intnCount=0;whil

16、e(1)(if(+pos>0)(if(strExp->GetAt(pos)!="-')break;elsenCount+;)elsebreak;)if(nCount>0)(strExp->Delete(pos-nCount-1,nCount+1);if(nCount%2=0)strExp->Insert(pos-nCount-1,"-");elseif(pos-nCount-1>0)strExp->Insert(pos-nCount-1,"+");pos=0;continue;)elsepos-

17、;/*/if(pos>0&&strExp->GetAt(pos-1)="+')pos+;continue;)Calcu(strExp,pos);)elsepos+;pos=0;while(1)(pos=strExp->Find('+');ind('+');if(pos=-1)break;etLength();strExp->Insert(pos,m_strConValuei);if(pos>=1)(charch=strExp->GetAt(pos-1);if(ch>=48&&am

18、p;ch<=57|ch=41)*strExp="缺少二元運算符"return;pos=strExp->Find(m_strConNamei);CStringCCalculation:ModiResult(CStringstrRes)II.if("#IN")!=-1)return"結(jié)果有溢出或值域越界/*去掉保護括號*/if(0)='(')(0);if()-1)=')')()-1);/*/intpos=(".");CStringstr=""if(pos!=-1)i

19、f(pos=0)strRes="0"+strRes;elseif(0)='-'&&(1)='.')(1,"0");if(pos>16)(pos);(1,".");("%d",pos-1);str="E"+str;pos=(".");if(pos=0|pos=1&&(0)='0')for(inti=pos+1;i<();i+)if(i>4)("E-%d",i-2

20、);(pos,i-1);(1,".")；)strRes=(pos+16)+str;if(pos!=-1)(strDF=()-pos-1);(pos,()-pos);)();len=();for(i=0;i<len;i+)(ch=(i);dx+=(ch-48)*pow(8,i);)len=();for(i=0;i<len;i+)(ch=(i);dx+=(ch-48)*pow(8,-i-1);)strTmp=NtoS(dx);strExp->Insert(index+1,strTmp);pos=strExp->Find("xo");)

21、voidCCalculation:Hex2Dec(CString*strExp)(intlen,i,index,pos=strExp->Find("xh");CStringstrTmp,strDF;charch;doubledx;while(pos!=-1)(dx=0;strTmp=""strDF=""strExp->Delete(pos,2);for(i=pos-1;i>=0;i-)(ch=strExp->GetAt(i);if(ch>=48&&ch<=57|ch>=97&a

22、mp;&ch<=10211ch=46)(0,strExp->Mid(i,1);strExp->Delete(i);elsebreak;if(i=pos-1)*strExp="ERROR_缺少二元運算符_"return;index=i;pos=0;for(i=0;i<();i+)if(i)='.')pos+;if(pos>1)*strExp="ERROR_缺少二元運算符_"return;pos=(".");if(pos!=-1)strDF=()-pos-1);(pos,()-pos)

23、;();len=();for(i=0;i<len;i+)ch=(i);if(ch>=48&&ch<=57);if(pos!=-1)strDF=()-pos-1);(pos,()-pos);();len=();for(i=0;i<len;i+)ch=(i);dx+=(ch-48)*pow(2,i);len=();for(i=0;i<len;i+)(ch=(i);dx+=(ch-48)*pow(2,-i-1);)strTmp=NtoS(dx);strExp->Insert(index+1,strTmp);pos=strExp->Find(&

24、quot;xb");)voidCCalculation:Dec2Hex(CString*strExp/*strExp須為數(shù)字*/)(boolbMinus=0;if(strExp->GetAt(0)='-')(bMinus=1;strExp->Delete(0);)intpos=strExp->Find('.');CStringstr,strDec;intnDecInt;doubledDec;if(pos!=-1)(strDec=strExp->Left(pos);nDecInt=atoi(0);strDec=strExp->

25、;Right(strExp->GetLength()-pos);)else(nDecInt=atoi(strExp->GetBuffer(0);)strExp->Empty();while(nDecInt!=0)(intnTmp=nDecInt%16;if(nTmp=10)str="a"elseif(nTmp=11)str="b"elseif(nTmp=12)str="c"elseif(nTmp=13)str="d"elseif(nTmp=14)str="e"elseif(nT

26、mp=15)str="f"else("%d",nTmp);nDecInt/=16;strExp->Insert(0,str);)*strExp+="."if(pos!=-1)dDec=StoN(strDec);intnCount=0;while(dDec!=0)dDec*=16;intnTmp=dDec;if(nTmp=10)str="a"elseif(nTmp=11)str="b"elseif(nTmp=12)str="c"elseif(nTmp=13)str=&qu

27、ot;d"elseif(nTmp=14)str="e"elseif(nTmp=15)str="f"else("%d",nTmp);*strExp+=(pos);dDec-=nTmp;if(+nCount=17)break;)if(bMinus)strExp->Insert(0,"-");if(strExp->Find("-1")!=-1&&bMinus!=1)*strExp="太大無法表示")voidCCalculation:Dec2Oc

28、t(CString*strExp)boolbMinus=0;if(strExp->GetAt(0)='-')bMinus=1;strExp->Delete(0);)intpos=strExp->Find('.');CStringstr,strDec;intnDecInt;doubledDec;if(pos!=-1)strDec=strExp->Left(pos);nDecInt=atoi(0);strDec=strExp->Right(strExp->GetLength()-pos);)elsenDecInt=atoi(strExp->GetBuffer(0);)strExp->Empty();while(nDecInt!=0)intnTmp=nDecInt%8;("%d",nTmp);nDecInt/=8;strExp->Insert(0,str);)*strExp+="."if(pos!=-1)dDec=StoN(strDec);intnCount=0;while(dDec!=0)