普通計算模塊:(運行效果圖參見計算器項目綜述)
該模塊開發文檔截圖
這一模塊是該項目的核心。考慮核心代碼的實現:由於運算符只有這六種(+、-、*、/、平方、開方)所以就可以將表達式中的運算符存在一個char數組中,然後先對該數組中平方和開方這兩個一元運算符進行處理,這樣表達式中就只剩下另外四種運算符了。而這四種運算符只有兩個優先級,利用堆棧很容易實現。遇到+、-就將數字(或其相反數)push(),遇到*、/就進行pop(),這樣最後將棧中的數字加和即可。
該模塊完整代碼如下:
// 簡化調試Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "簡化調試.h"
#include "簡化調試Dlg.h"
#include "cmath"
#include "stack"
#include "MyDlg_1.h"
#include "MyDlg_2.h"
#include "MyDlg_3.h"
using namespace std;
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
CString m_num("");
CString m_sig("");
double xiaoshu,jieguo,answer;
int zhengshu,index;
int i,j,num_lenth=0;
double num[50];
stack <double> result;
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg dialog
CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CMyDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMyDlg)
m_str = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMyDlg)
DDX_Text(pDX, IDC_EDIT1, m_str);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
//{{AFX_MSG_MAP(CMyDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
ON_BN_CLICKED(IDC_BUTTON4, OnButton4)
ON_BN_CLICKED(IDC_BUTTON5, OnButton5)
ON_BN_CLICKED(IDC_BUTTON10, OnButton10)
ON_BN_CLICKED(IDC_BUTTON11, OnButton11)
ON_BN_CLICKED(IDC_BUTTON12, OnButton12)
ON_BN_CLICKED(IDC_BUTTON13, OnButton13)
ON_BN_CLICKED(IDC_BUTTON14, OnButton14)
ON_BN_CLICKED(IDC_BUTTON6, OnButton6)
ON_BN_CLICKED(IDC_BUTTON7, OnButton7)
ON_BN_CLICKED(IDC_BUTTON8, OnButton8)
ON_BN_CLICKED(IDC_BUTTON9, OnButton9)
ON_BN_CLICKED(IDC_BUTTON0, OnButton0)
ON_BN_CLICKED(IDC_BUTTON15, OnButton15)
ON_BN_CLICKED(IDC_BUTTON16, OnButton16)
ON_BN_CLICKED(IDC_BUTTON17, OnButton17)
ON_BN_CLICKED(IDC_BUTTON18, OnButton18)
ON_BN_CLICKED(IDC_BUTTON19, OnButton19)
ON_COMMAND(ID_MENUITEM0, OnMenuitem0)
ON_COMMAND(ID_MENUITEM1, OnMenuitem1)
ON_COMMAND(ID_MENUITEM2, OnMenuitem2)
ON_COMMAND(ID_MENUITEM3, OnMenuitem3)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg message handlers
BOOL CMyDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
void CMyDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CMyDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CMyDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CMyDlg::OnButton1()
{
// TODO: Add your control notification handler code here
m_num = m_num + "1";
m_str = m_str + "1";
UpdateData(FALSE);
}
void CMyDlg::OnButton2()
{
// TODO: Add your control notification handler code here
m_num = m_num + "2";
m_str = m_str + "2";
UpdateData(FALSE);
}
void CMyDlg::OnButton3()
{
// TODO: Add your control notification handler code here
m_num = m_num + "3";
m_str = m_str + "3";
UpdateData(FALSE);
}
void CMyDlg::OnButton4()
{
// TODO: Add your control notification handler code here
m_num = m_num + "4";
m_str = m_str + "4";
UpdateData(FALSE);
}
void CMyDlg::OnButton5()
{
// TODO: Add your control notification handler code here
m_num = m_num + "5";
m_str = m_str + "5";
UpdateData(FALSE);
}
void CMyDlg::OnButton10()
{
// TODO: Add your control notification handler code here
UpdateData();
m_str = m_str + "+";
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
m_sig = m_sig + "+";
UpdateData(FALSE);
m_num = "";
}
void CMyDlg::OnButton11()
{
// TODO: Add your control notification handler code here
UpdateData();
m_str = m_str + "-";
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
m_sig = m_sig + "-";
UpdateData(FALSE);
m_num = "";
}
void CMyDlg::OnButton12()
{
// TODO: Add your control notification handler code here
UpdateData();
m_str = m_str + "×";
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
m_sig = m_sig + "*";
UpdateData(FALSE);
m_num = "";
}
void CMyDlg::OnButton13()
{
// TODO: Add your control notification handler code here
UpdateData();
m_str = m_str + "÷";
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
m_sig = m_sig + "/";
UpdateData(FALSE);
m_num = "";
}
void CMyDlg::OnButton14()
{
// TODO: Add your control notification handler code here
UpdateData(TRUE);
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
answer = 0;
char csig[50];
strncpy(csig,m_sig,sizeof(csig));
for(i = 0;i < strlen(csig);i++)
{
if(csig[i] == '#' || csig[i] == '@')
{
if(csig[i] == '#')
num[i] = num[i] * num[i];
else
num[i] = sqrt(num[i]);
for(j = i;j<strlen(csig)-1;j++)
csig[j] = csig[j+1];
csig[strlen(csig)-1] = '\0';
}
}
result.push(num[0]);
int m =-1;
double b;
while(1)
{
m++;
if(csig[m] != '+' && csig[m] != '-' && csig[m] != '*' && csig[m] != '/')
break;
if(csig[m]=='+'||csig[m]=='-')
{
if(csig[m]=='+') result.push(num[m+1]);
else result.push(-num[m+1]);
}
else
{
b=result.top();
result.pop();
if(csig[m]=='*') result.push(b*num[m+1]);
else
{
if(num[m+1]==0)
{
MessageBox("除以0,你是逗比嗎?!\n重新計算吧。");
return ;
}
result.push(b/num[m+1]);
}
}
}
while(!result.empty())
{
answer+=result.top();
result.pop();
}
m_str.Format("%f", answer);
UpdateData(FALSE);
}
void CMyDlg::OnButton16()
{
// TODO: Add your control notification handler code here
UpdateData();
m_str = m_str + "^2";
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
m_sig = m_sig + "#";
UpdateData(FALSE);
m_num = "";
}
void CMyDlg::OnButton6()
{
// TODO: Add your control notification handler code here
m_num = m_num + "6";
m_str = m_str + "6";
UpdateData(FALSE);
}
void CMyDlg::OnButton7()
{
// TODO: Add your control notification handler code here
m_num = m_num + "7";
m_str = m_str + "7";
UpdateData(FALSE);
}
void CMyDlg::OnButton8()
{
// TODO: Add your control notification handler code here
m_num = m_num + "8";
m_str = m_str + "8";
UpdateData(FALSE);
}
void CMyDlg::OnButton9()
{
// TODO: Add your control notification handler code here
m_num = m_num + "9";
m_str = m_str + "9";
UpdateData(FALSE);
}
void CMyDlg::OnButton0()
{
// TODO: Add your control notification handler code here
m_num = m_num + "0";
m_str = m_str + "0";
UpdateData(FALSE);
}
void CMyDlg::OnButton15()
{
// TODO: Add your control notification handler code here
if(m_num.GetAt(m_num.GetLength()-1)=='.')
return ;
m_num = m_num + ".";
m_str = m_str + ".";
UpdateData(FALSE);
}
void CMyDlg::OnButton17()
{
// TODO: Add your control notification handler code here
UpdateData();
m_str = m_str + "^0.5";
zhengshu = 0;
xiaoshu =0.0;
index = 1;
char cnum[50];
strncpy(cnum,m_num,sizeof(cnum));
for(i = 0;i < strlen(cnum);i++)
{
if(cnum[i] != '.')
zhengshu = zhengshu * 10 + (cnum[i] - '0');
else
{
for(j = i+1;j < strlen(cnum);j++,index++)
{
xiaoshu += (cnum[j] - '0') / pow(10,index);
}
break;
}
}
jieguo = zhengshu + xiaoshu;
num[num_lenth++] = jieguo;
m_sig = m_sig + "@";
UpdateData(FALSE);
m_num = "";
}
void CMyDlg::OnButton18()
{
// TODO: Add your control notification handler code here
MessageBox("1.該計算器可以進行混合運算\n\n2.每次重新計算之前請按CE","溫馨提示");
}
void CMyDlg::OnButton19()
{
// TODO: Add your control notification handler code here
UpdateData();
m_num = "";
m_sig = "";
num_lenth = 0;
m_str = "";
UpdateData(FALSE);
}
void CMyDlg::OnMenuitem1()
{
// TODO: Add your command handler code here
CMyDlg::OnCancel();
CMyDlg_1 dlg;
dlg.DoModal();
}
void CMyDlg::OnMenuitem2()
{
// TODO: Add your command handler code here
CMyDlg::OnCancel();
CMyDlg_2 dlg;
dlg.DoModal();
}
void CMyDlg::OnMenuitem0()
{
// TODO: Add your command handler code here
MessageBox("您已處於普通計算模式!");
}
void CMyDlg::OnMenuitem3()
{
// TODO: Add your command handler code here
CMyDlg::OnCancel();
CMyDlg_3 dlg;
dlg.DoModal();
}