// 1、将GBK转换成UTF8

string GBKToUTF8(const std::string& strGBK)

{

 string strOutUTF8 = "";

 WCHAR * str1;

 int n = MultiByteToWideChar(CP_ACP, , strGBK.c_str(), -, NULL, );

 str1 = new WCHAR[n];

 MultiByteToWideChar(CP_ACP, , strGBK.c_str(), -, str1, n);

 n = WideCharToMultiByte(CP_UTF8, , str1, -, NULL, , NULL, NULL);

 char * str2 = new char[n];

 WideCharToMultiByte(CP_UTF8, , str1, -, str2, n, NULL, NULL);

 strOutUTF8 = str2;

 delete[]str1;

 str1 = NULL;

 delete[]str2;

 str2 = NULL;

 return strOutUTF8;

}

// 2、将UTF8转换成GBK

string UTF8ToGBK(const std::string& strUTF8)

{

 int len = MultiByteToWideChar(CP_UTF8, , strUTF8.c_str(), -, NULL, );

 unsigned short * wszGBK = new unsigned short[len + ];

 memset(wszGBK, , len *  + );

 MultiByteToWideChar(CP_UTF8, , (LPCTSTR)strUTF8.c_str(), -, wszGBK, len);

 len = WideCharToMultiByte(CP_ACP, , wszGBK, -, NULL, , NULL, NULL);

 char *szGBK = new char[len + ];

 memset(szGBK, , len + );

 WideCharToMultiByte(CP_ACP,, wszGBK, -, szGBK, len, NULL, NULL);

 //strUTF8 = szGBK;

 std::string strTemp(szGBK);

 delete[]szGBK;

 delete[]wszGBK;

 return strTemp;

}