GBK与UTF8编码相互转换

1、将GBK转换成UTF8

string GBKToUTF8(const std::string& strGBK)

{

string strOutUTF8 = "";

WCHAR * str1;

int n = MultiByteToWideChar(CP_ACP, 0, strGBK.c_str(), -1, NULL, 0);

str1 = new WCHAR
;

MultiByteToWideChar(CP_ACP, 0, strGBK.c_str(), -1, str1, n);

n = WideCharToMultiByte(CP_UTF8, 0, str1, -1, NULL, 0, NULL, NULL);

char * str2 = new char
;

WideCharToMultiByte(CP_UTF8, 0, str1, -1, 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, 0, strUTF8.c_str(), -1, NULL, 0);

LPWSTR wszGBK = new WCHAR[len+1];

memset(wszGBK, 0, len * 2 + 2);

MultiByteToWideChar(CP_UTF8, 0, (LPCTSTR)strUTF8.c_str(), -1, wszGBK, len);

len = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);

char *szGBK = new char[len + 1];

memset(szGBK, 0, len + 1);

WideCharToMultiByte(CP_ACP,0, wszGBK, -1, szGBK, len, NULL, NULL);

//strUTF8 = szGBK;

std::string strTemp(szGBK);

delete[]szGBK;

delete[]wszGBK;

return strTemp;

}