#include <windows.h>

/**
* @brief 普通字符转宽字符
*
* @param lpcszStr 普通字符
* @param lpwszStr 转换后的宽字符
* @param dwSize 存储宽字符的缓冲区大小
*
* @return 
*/
BOOL MByteToWChar(LPCSTR lpcszStr, LPWSTR lpwszStr, DWORD dwSize)
{
// Get the required size of the buffer that receives the Unicode 
// string. 
DWORD dwMinSize;
dwMinSize = MultiByteToWideChar (CP_ACP, 0, lpcszStr, -1, NULL, 0);

if(dwSize < dwMinSize)
{
return FALSE;
}


// Convert headers from ASCII to Unicode.
MultiByteToWideChar (CP_ACP, 0, lpcszStr, -1, lpwszStr, dwMinSize); 
return TRUE;
}

/**
* @brief 宽字符转普通字符
*
* @param lpcwszStr 宽字符
* @param lpszStr 转换后的普通字符
* @param dwSize 存储普通字符的缓冲区大小
*
* @return 
*/
BOOL WCharToMByte(LPCWSTR lpcwszStr, LPSTR lpszStr, DWORD dwSize)
{
DWORD dwMinSize;
dwMinSize = WideCharToMultiByte(CP_OEMCP,0,lpcwszStr,-1,NULL,0,NULL,FALSE);
if(dwSize < dwMinSize)
{
return FALSE;
}
WideCharToMultiByte(CP_OEMCP,0,lpcwszStr,-1,lpszStr,dwSize,NULL,FALSE);
return TRUE;
}

/**
* @brief 
* WinExec 和 ShellExecute 两个函数在执行的时候不会等待命令执行完成，
* 会造成文件没有解压完就执行完了,不符合我们的需求
* ret=WinExec(cmd,SW_HIDE);
* ShellExecute((HWND)"open", LPCWSTR(cmd), NULL, NULL,NULL,SW_HIDE); 
*
* system 函数调用可以，但是会有窗口弹出
* ret = system(cmd);
*
* 采用下面的方式
*
* @param cmd 这里面不能出现 > 符号
*
* @return 
* 
*/
int nb_system (char *cmd)
{
wchar_t cmd_w[2048] = {0};
MByteToWChar(cmd, cmd_w, sizeof(cmd_w)/sizeof(cmd_w[0]));
STARTUPINFO si;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof STARTUPINFO;

PROCESS_INFORMATION pi={0};
if(CreateProcess(NULL,cmd_w,NULL,NULL,TRUE,NORMAL_PRIORITY_CLASS | CREATE_NO_WINDOW,NULL,NULL,&si,&pi))
{
//等待进程执行完毕 
WaitForSingleObject(pi.hProcess ,INFINITE);


//释放资源
CloseHandle(pi.hProcess ); 
CloseHandle(pi.hThread ); 
}
else
{
//运行失败
return -1;
}

return 0;
}

int main()

{
   nb_system("dir");
}