計(jì)算器ppt演示文稿.

1、楊柔楊柔YangRou付麗平付麗平FuLIPing劉計(jì)云劉計(jì)云LiuJiYun1 12 23 3姚婷姚婷YaoTing標(biāo)題1標(biāo)題2標(biāo)題3 計(jì)算器的代碼編程計(jì)算器的代碼編程計(jì)算器的功能介紹計(jì)算器的界面設(shè)計(jì)1 12 23 31 12 2付麗萍功能介紹楊柔界面設(shè)計(jì)姚婷劉計(jì)云代碼編程 引出一個(gè)數(shù)學(xué)類(lèi)庫(kù)頭文件#include math.h#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/預(yù)定義兩個(gè)常數(shù)變量PI和e#define PI 3.1415926#define e 2.71

2、8281828459/定義字符串類(lèi)型的兩個(gè)變量a1與a2,主要用于對(duì)兩次輸入的數(shù)據(jù)進(jìn)行緩存以便于進(jìn)行計(jì)算CString a1,a2;/一個(gè)整數(shù)變量m，用于在函數(shù)Onequal中進(jìn)行運(yùn)算時(shí)進(jìn)行運(yùn)算符的選擇int m=0;Set the icon for this dialog. The framework does this automaticallySet big iconSet small icon when the applications main window is not a dialog如果你添加一個(gè)盡量減少如果你添加一個(gè)盡量減少按鈕到您的對(duì)話框，你將需按鈕到您的對(duì)話框，你將需y代

3、碼繪制圖標(biāo)。代碼繪制圖標(biāo)。對(duì)對(duì)applicationsusing的的文檔文檔/視圖模型，這是自動(dòng)完成你的框架。視圖模型，這是自動(dòng)完成你的框架。The system calls this to obtain the cursor to display while the user dragsvoid CCalculatebDlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);/

4、Center icon in client rectangleint cxIcon = GetSystemMetrics(SM_CXICON);Contentwelcome to use these PowerPoint templates, New Content design, 10 years experienceint cyIcon = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.Width() - cxIcon + 1) / 2;int y = (rect.Height()

5、 - cyIcon + 1) / 2;/ Draw the icondc.DrawIcon(x, y, m_hIcon);elseCDialog:OnPaint();通過(guò)該操作可以把計(jì)算器內(nèi)部通過(guò)通過(guò)該操作可以把計(jì)算器內(nèi)部通過(guò)a1、a2緩存的值以緩存的值以及界面顯示的值全部清空。及界面顯示的值全部清空。void CCalculatebDlg:Once() / TODO: Add your control notification handler code hereUpdateData();/m_lecture = ;a1 = ;a2 = ;UpdateData(FALSE);void CCal

6、culatebDlg:Ondel()/ TODO: Add your control notification handler code hereUpdateData();int length =m_lecture.GetLength();/通過(guò)調(diào)用內(nèi)部函數(shù)m_edit.GetLength()來(lái)獲取顯示其上的長(zhǎng)度并將值賦給變流量length，length-;/把length值減一m_lecture = m_lecture.Left(length)/從左側(cè)起獲取length位的數(shù)據(jù)交給顯示框顯示UpdateData(FALSE);Content/加減乘除和求余加減乘除和求余void CCalcu

7、latebDlg:Ona() UpdateData();a1=m_lecture;m_lecture+=+;m=1;UpdateData(FALSE); void CCalculatebDlg:Onb() / TODO: Add your control notification handler code here UpdateData();a1=m_lecture;m_lecture+=-;m=2;UpdateData(FALSE); void CCalculatebDlg:Oncot() / TODO: Add your control notification handler code

8、hereUpdateData();a1=m_lecture;double num1=atof(a1);double num2=cos(PI/180*num1)/sin(PI/180*num1);m_lecture.Format(_T(%lf), num2);UpdateData(FALSE);void CCalculatebDlg:Onc() / TODO: Add your control notification handler code hereUpdateData();a1=m_lecture;m_lecture+=*;m=3;UpdateData(FALSE)void CCalcul

9、atebDlg:Onarcsin() / TODO: Add your control notification handler code herea1=m_lecture;double num1=atof(a1);double num2= asin (num1)*(180/PI);m_lecture.Format(_T(%lf), num2);UpdateData(FALSE);void CCalculatebDlg:Onarccos() / TODO: Add your control notification handler code herea1=m_lecture;double nu

10、m1=atof(a1);double num2= acos (num1)*(180/PI);m_lecture.Format(_T(%lf), num2);UpdateData(FALSE);void CCalculatebDlg:Onarctan() / TODO: Add your control notification handler code herea1=m_lecture;double num1=atof(a1);double num2= atan (num1)*(180/PI);m_lecture.Format(_T(%lf), num2);UpdateData(FALSE);

11、1 12 23 32 23 3123首先，將輸入的值賦給編輯框，然后將a1轉(zhuǎn)換成雙精度的書(shū)num1231/首先把輸入的數(shù)據(jù)傳給r1,然后將r1由字符串型轉(zhuǎn)換成雙精度字符型num1/(First turn on the second input data to r1, then r1from the string type into double precision character type num1)/最后，三個(gè)或兩個(gè)num1相乘即可/x3運(yùn)算oid CCalculatebDlg:Onpow() / TODO: Add your control notification handler c

12、ode herea1=m_lecture;double num1=atof(a1);double num2= num1*num1;m_lecture.Format(_T(%lf), num2);UpdateData(FALSE);Contentvoid CCalculatebDlg:Ondaoshu() / TODO: Add your control notification handler code here a1=m_lecture;double num1=atof(a1); double num2= 1/num1 ; m_lecture.Format(_T(%lf), num2);Up

13、dateData(FALSE);Contentvoid CCalculatebDlg:Onjiecheng() / TODO: Add your control notification handler code hereUpdateData();a1=m_lecture;double n=atof(a1); doublej=1,num2=1; for(j=1;j=n;j+) num2=j*num2; m_lecture.Format(_T(%lf), num2);UpdateData(FALSE);Contentvoid CCalculatebDlg:Onsqrt() / TODO: Add your control notification handler code hereUpdateData