c / c++ /vc µÄһЩС֪ʶ

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1¡¢ShellExecute(0,"open","c:\\abc.exe","","",SW_SHOW);
2¡¢WinExec("c:\\a.exe",SW_SHOW);
3¡¢system("dir c:\\");
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m_hwnd = FindWindows("Notepad","a.txt-¼Çʱ¾");
SendMessage(m_hwnd,WM_SYSCOMMAND,SC_CLOSE,0);
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#pragma comment( linker, "/subsystem:\"windows\" /entry:\"mainCRTStartup\"" )
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#include <windows.h>
#include <mmsystem.h>
mciSendString("set cdaudio door open",NULL,0,0);
mciSendString("set cdaudio door closed",NULL,0,0);
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char path[200];
GetCurrentDirectory(200,path);//»ñÈ¡µ±Ç°Â·¾¶ ²»°üº¬±¾³ÌÐò
GetModuleFileName(NULL,path,200);//»ñÈ¡µ±Ç°Â·¾¶ °üº¬±¾³ÌÐò
SHGetSpecialFolderPath(NULL,path,CSIDL_STARTUP,TRUE);//»ñÈ¡¿ªÊ¼Æô¶¯Â·¾¶
GetSystemDirectory(path,200);//»ñȡϵͳ·¾¶
char ºÍ CString ת»¯
char lp[256]; CString temp;
1¡¢
strcpy(lp,(LPCTSTR)temp);
lp = (LPTSTR)(LPCTSTR)temp;
2¡¢
temp = CString(lp);
temp.Format("%s",lp);
char µ½ LPCTSTR
char ch[256];
_bstr_t  a;
a=ch; //a¼´ÎªLPCTSTR
TCHAR µ½ char
TCHAR exe[200];
char path[200];
setlocale(LG_ALL,"chs");
wcstombs(path,exe,200);