一、文件目录
二、源码：
// GenerateRandDlg.cpp : implementation file
//
#include "stdafx.h"
#include "GenerateRand.h"
#include "GenerateRandDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/
// 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()
/
// CGenerateRandDlg dialog
CGenerateRandDlg::CGenerateRandDlg(CWnd* pParent /*=NULL*/)
: CDialog(CGenerateRandDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CGenerateRandDlg)
m_Min = 0.0;
m_Max = 0.0;
m_Rand1 = 0.0;
m_Rand2 = 0.0;
m_Rand3 = 0.0;
m_Rand4 = 0.0;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CGenerateRandDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CGenerateRandDlg)
DDX_Text(pDX, IDC_EDIT1, m_Min);
DDX_Text(pDX, IDC_EDIT2, m_Max);
DDX_Text(pDX, IDC_EDIT3, m_Rand1);
DDX_Text(pDX, IDC_EDIT4, m_Rand2);
DDX_Text(pDX, IDC_EDIT5, m_Rand3);
DDX_Text(pDX, IDC_EDIT6, m_Rand4);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CGenerateRandDlg, CDialog)
//{{AFX_MSG_MAP(CGenerateRandDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_GENERATE, OnGenerate)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/
// CGenerateRandDlg message handlers
BOOL CGenerateRandDlg::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 CGenerateRandDlg::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 CGenerateRandDlg::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 CGenerateRandDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
//核心代码
void CGenerateRandDlg::OnGenerate()
{
// TODO: Add your control notification handler code herein
//生成按钮响应
UpdateData(true); //更新当前控件数据
if(m_Min>=m_Max)
{
AfxMessageBox("最大值、最小值设置错误！");
return;
}
srand((unsigned)time(NULL)); //随机数计时开始
m_Rand1=GetRand(m_Min,m_Max);
m_Rand2=GetRand(m_Min,m_Max);
m_Rand3=GetRand(m_Min,m_Max);
m_Rand4=GetRand(m_Min,m_Max);
UpdateData(false);
}
double CGenerateRandDlg::GetRand(double MIN, double MAX)//产生随机数
{
double max;
max=RAND_MAX;//rand()函数随机数的最大值
return (double)(rand()*(MAX-MIN)/max+MIN);
}
三、头文件：
// GenerateRandDlg.h : header file
//
#if !defined(AFX_GENERATERANDDLG_H__323126CD_2F48_4BC1_B5D9_6CF197024CD9__INCLUDED_)
#define AFX_GENERATERANDDLG_H__323126CD_2F48_4BC1_B5D9_6CF197024CD9__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
/
// CGenerateRandDlg dialog
class CGenerateRandDlg : public CDialog
{
// Construction
public:
CGenerateRandDlg(CWnd* pParent = NULL); // standard constructor
double GetRand(double MIN, double MAX);
// Dialog Data
//{{AFX_DATA(CGenerateRandDlg)
enum { IDD = IDD_GENERATERAND_DIALOG };
double m_Min;
double m_Max;
double m_Rand1;
double m_Rand2;
double m_Rand3;
double m_Rand4;
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CGenerateRandDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
HICON m_hIcon;
// Generated message map functions
//{{AFX_MSG(CGenerateRandDlg)
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
afx_msg void OnGenerate();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_GENERATERANDDLG_H__323126CD_2F48_4BC1_B5D9_6CF197024CD9__INCLUDED_)
四、运行结果：
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