MFC中获取命令行参数的几种方法

参考了http://www.qingfengju.com/article.asp?id=92、http://www.cnblogs.com/oskycar/articles/1313355.html

和http://www.codeguru.com/forum/showthread.php?t=386406

不妨设应用程序名为CmdTest，在命令行输入CmdTest Hello World

方法一:

CString str = ::GetCommandLine(); ASSERT(0 == str.Compare("CmdTest Hello World"));

方法二:

ASSERT(3 == __argc); ASSERT(0 == strcmp(__argv[0],"CmdTest")); ASSERT(0 == strcmp(__argv[1],"Hello")); ASSERT(0 == strcmp(__argv[2],"World"));

方法三:

ASSERT(0 == strcmp("Hello World",AfxGetApp()->m_lpCmdLine));

方法四:

使用MFC中的CCommandLineInfo类。

首先，将下面的代码注释，主要是不要生成对话框。

CCmdTestDlg dlg; m_pMainWnd = &dlg; int nResponse = dlg.DoModal(); if (nResponse == IDOK) { // TODO: Place code here to handle when the dialog is // dismissed with OK } else if (nResponse == IDCANCEL) { // TODO: Place code here to handle when the dialog is // dismissed with OK }

创建CCommandLineInfo的派生类

//MyCmdLineInfo.h class CMyCmdLineInfo : public CCommandLineInfo { public: CMyCmdLineInfo(); virtual ~CMyCmdLineInfo(); virtual void ParseParam(const char* pszParam, BOOL bFlag, BOOL bLast); CStringArray m_arCommd; }; //MyCmdLineInfo.cpp CMyCmdLineInfo::CMyCmdLineInfo() { m_arCommd.RemoveAll(); } CMyCmdLineInfo::~CMyCmdLineInfo() { } void CMyCmdLineInfo::ParseParam(const char* pszParam, BOOL bFlag, BOOL bLast) { CString str = pszParam; m_arCommd.Add(str); }

在CCmdTestApp::InitInstance最后，return FALSE之前加上，注意要#include对应头文件

CMyCmdLineInfo cmdInfo; cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing; ParseCommandLine(cmdInfo); ASSERT(2 == cmdInfo.m_arCommd.GetSize()); ASSERT(0 == cmdInfo.m_arCommd[0].Compare("Hello")); ASSERT(0 == cmdInfo.m_arCommd[1].Compare("World"));

方法五:

使用控制台应用程序(Win32 console application)，并在接下来的对话框中选择“An application that supports MFC”

单击Finnish按钮，会自动生成_tmain函数

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]) { int nRetCode = 0; // initialize MFC and print and error on failure if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0)) { // TODO: change error code to suit your needs cerr << _T("Fatal Error: MFC initialization failed") << endl; nRetCode = 1; } else { // TODO: code your application"s behavior here. //将下面代码注释掉换成自己的代码即可 CString strHello; strHello.LoadString(IDS_HELLO); cout << (LPCTSTR)strHello << endl; } return nRetCode; }