wcstombs使用需要設定中文環境，具體修改程式碼如下：

bool Block::Create(const wchar_t* filename)
// PURPOSE: Create a new block file and open it.
// PURPOSE: If file is present, truncate it and then open it.
// PROMISE: Return true if file is successfully created and opened, false if otherwise.
{
	// Create new file
	size_t filenameLength = 2*wcslen(filename)+1;
	char* name = new char[filenameLength];
	size_t converted = 0;
	wcstombs_s(&converted, name, filenameLength, filename, _TRUNCATE);
	//name[filenameLength] = 0;

	setlocale(LC_ALL,"");
	file_.open(name, ios_base::out | ios_base::trunc);	
	setlocale(LC_ALL,"C");

	file_.close();
	file_.clear();

	// Open the file
	bool ret = this->Open(filename);
	delete[] name;
	return ret;
}

bool Block::Open(const wchar_t* filename, ios_base::openmode mode)
// PURPOSE: Open an existing block file.
// PROMISE: Return true if file is successfully opened, false if otherwise.
{
	// Open existing file for reading or writing or both
	size_t filenameLength = wcslen(filename);
	filename_.resize(2*filenameLength+1, 0);
	setlocale(LC_ALL,"");
	wcstombs(&*(filename_.begin()), filename, 2*filenameLength+1);
	
	file_.open(&*(filename_.begin()), mode | ios_base::binary);
	setlocale(LC_ALL,"C");
	if (!file_.is_open()) return false;

	mode_ = mode;
	
	// Calculate filesize
	if (mode & ios_base::in)
	{
		file_.seekg(0, ios_base::end);
		fileSize_ = file_.tellg();
	}
	else if (mode & ios_base::out)
	{
		file_.seekp(0, ios_base::end);
		fileSize_ = file_.tellp();
	}
	else
	{
		this->Close();
		return false;	
	}
	
	// Calculate last index + 1
	indexEnd_ = fileSize_/blockSize_ + (fileSize_ % blockSize_ ? 1 : 0);
	return true;
}