UTF8ANSI转换函数

 void Convert(const char* strIn,char* strOut, int sourceCodepage, int targetCodepage)
   {
       int len=lstrlen(strIn);
       int unicodeLen=MultiByteToWideChar(sourceCodepage,0,strIn,-1,NULL,0);
       wchar_t* pUnicode;
       pUnicode=new wchar_t[unicodeLen+1];
       memset(pUnicode,0,(unicodeLen+1)*sizeof(wchar_t));
       MultiByteToWideChar(sourceCodepage,0,strIn,-1,(LPWSTR)pUnicode,unicodeLen);
       BYTE * pTargetData = NULL;
       int targetLen=WideCharToMultiByte(targetCodepage,0,(LPWSTR)pUnicode,-1,(char *)pTargetData,0,NULL,NULL);
       pTargetData=new BYTE[targetLen+1];
       memset(pTargetData,0,targetLen+1);
       WideCharToMultiByte(targetCodepage,0,(LPWSTR)pUnicode,-1,(char *)pTargetData,targetLen,NULL,NULL);
       lstrcpy(strOut,(char*)pTargetData);
       delete pUnicode;
       delete pTargetData;
    }

使用：Convert(strA_in,strB_out,CP_UTF8,CP_ACP)//UTF8转换ANSI

 Convert(strA_out,strB_in,CP_ACP,CP_UTF8)//ANSI转换UTF8

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