void saveWideFileHead(std::ofstream& out)// 写入文件内容前，先写入BOM

{

	char const* const utf16head = "\xFF\xFE";

	out.write(utf16head, 2);

}

void saveWideFileContent(std::ofstream& out, wchar_t const* str, int size)

{

	char const* pos = (char const*)str;

	out.write(pos, size);

}

void saveWideFileCRLF(std::ofstream& out)// 写入回车换行符

{

	char const* const utf16head = "\x0D\x00\x0A\x00";

	out.write(utf16head, 4);

}

void Test()

{

	std::ofstream of("test.log", std::ios::binary | std::ios::out);

	saveWideFileHead(of);

	CString str("hello中国world1234");

	saveWideFileContent(of, str, str.GetLength() * 2);

	saveWideFileCRLF(of);

	saveWideFileContent(of, str, str.GetLength() * 2);

	of.close();

}