LPWSTR GBK(LPCSTR plszUtf8, WCHAR* lpszGBK)
{
int len = MultiByteToWideChar(CP_UTF8, 0, plszUtf8, -1, NULL, 0);
memset((void*)lpszGBK, 0, sizeof(WCHAR)*(len+2));
MultiByteToWideChar(CP_UTF8, 0, plszUtf8, -1, (LPWSTR)lpszGBK, len);
return lpszGBK;
}