UTF8和GBK互转_c# string gbk to utf-8

string GBKToUTF8(const char* strGBK)
{
	int len = MultiByteToWideChar(CP_ACP, 0, strGBK, -1, NULL, 0);
	wchar_t* wstr = new wchar_t[len + 1];
	memset(wstr, 0, len + 1);
	MultiByteToWideChar(CP_ACP, 0, strGBK, -1, wstr, len);
	len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
	char* str = new char[len + 1];
	memset(str, 0, len + 1);
	WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, len, NULL, NULL);
	string strTemp = str;
	if (wstr) delete[] wstr;
	if (str) delete[] str;
	return strTemp;
}

string UTF8ToGBK(const char* strUTF8)
{
	int nLength = MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, NULL, 0);
	wchar_t* wszGBK = new wchar_t[nLength + 1];
	memset(wszGBK, 0, (size_t)nLength * 2 + 2);
	MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, wszGBK, nLength);
	nLength = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);
	char* szGBK = new char[nLength + 1];
	memset(szGBK, 0, (size_t)nLength + 1);
	WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, szGBK, nLength, NULL, NULL);
	string strTemp(szGBK);
	if (wszGBK) delete[] wszGBK;
	if (szGBK) delete[] szGBK;
	return strTemp;
}