c++之gbk和utf8编码转换
编码转换
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1.gbk转换成utf8
void GBKTOUTF8(string& strGBK)//转码 GBK编码转成UTF8编码
{
int len = MultiByteToWideChar(CP_ACP,0, strGBK.c_str(), - 1, NULL, 0);
wchar_t* wszUtf8 = new wchar_t[len];
memset(wszUtf8, 0, len);
MultiByteToWideChar(CP_ACP, 0, strGBK.c_str(), - 1, wszUtf8, len);
len = WideCharToMultiByte(CP_UTF8, 0, wszUtf8, -1, NULL,0,NULL,NULL);
char* szUtf8 = new char[len + 1];
memset(szUtf8, 0, len + 1);
WideCharToMultiByte(CP_UTF8, 0, wszUtf8, -1, szUtf8, len, NULL, NULL);
strGBK = szUtf8;
delete[] szUtf8;
delete[] wszUtf8;
}
2.utf8转换成gbk
std::string UTF8ToGBK(const char* strUTF8)//UTF8编码转成GBK编码
{
int len = MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, NULL, 0);
wchar_t* wszGBK = new wchar_t[len + 1];
memset(wszGBK,0, len * 2 + 2);
MultiByteToWideChar(CP_UTF8,0, strUTF8, - 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);
std::string strTemp(szGBK);
if (wszGBK) delete[] wszGBK;
if (szGBK) delete[] szGBK;
return strTemp;
}
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