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  • UTF8-GBK WideCharToMultiByte MultiByteToWideChar

    //MFC版本

    CString UTF8ToGBK(const CString& strUTF8)
    {
    //确定转换为Unicode需要多少缓冲区(返回值也包含了最后一个NULL字符)
    int len = MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, NULL, 0);
    unsigned short * wszGBK = new unsigned short[len + 1];
    memset(wszGBK, 0, len * 2 + 2);
    MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)strUTF8, -1, (LPWSTR)wszGBK, len);

    len = WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)wszGBK, -1, NULL, 0, NULL, NULL);
    char *szGBK = new char[len + 1];
    memset(szGBK, 0, len + 1);
    WideCharToMultiByte(CP_ACP,0, (LPCWSTR)wszGBK, -1, szGBK, len, NULL, NULL);
    CString gbkCString(szGBK);
    delete[]szGBK;
    delete[]wszGBK;
    return gbkCString;
    }

    //C++标准版本

    std::string GBKToUTF8(const std::string& strGBK)
    {
     std::string strOutUTF8 = "";
     WCHAR * str1;
     int n = MultiByteToWideChar(CP_ACP, 0, strGBK.c_str(), -1, NULL, 0);
     str1 = new WCHAR[n];
     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[n];
     WideCharToMultiByte(CP_UTF8, 0, str1, -1, str2, n, NULL, NULL);
     strOutUTF8 = str2;
     delete[]str1;
     str1 = NULL;
     delete[]str2;
     str2 = NULL;
     return strOutUTF8;
    }

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  • 原文地址:https://www.cnblogs.com/coolbear/p/3718892.html
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