PCM格式保存为wav

	HANDLE hFile;

	WAVE_HEADER wh;
	wh.szRiff = 'FFIR';
	wh.szWave = 'EVAW';
	wh.szFmt = ' tmf';
	wh.FmtSize = sizeof(PCMWAVEFORMAT);
	CopyMemory(&wh.Fmt, lpFormat, sizeof(PCMWAVEFORMAT));
	wh.szData = 'atad';
	DWORD dwOpt;
	WriteFile(hFile, &wh, sizeof(wh), &dwOpt, NULL);
	//写入PCM数据后
	DWORD dwFileSize = GetFileSize(hFile, NULL);
	DWORD dwOpt;

	SetFilePointer(hFile, 0x04, NULL, FILE_BEGIN);
	dwFileSize = dwFileSize - sizeof(UINT) * 3;
	WriteFile(hFile, &dwFileSize, 4, &dwOpt, NULL);

	SetFilePointer(hFile, 0x28, NULL, FILE_BEGIN);
	dwFileSize = dwFileSize + sizeof(UINT) * 3 - sizeof(WAVE_HEADER);
	WriteFile(hFile, &dwFileSize, 4, &dwOpt, NULL);
	CloseHandle(hFile);

	HANDLE hFile;

	WAVE_HEADER wh;
	wh.szRiff = '