前几次都没人帮忙  这次看看吧
CString UTF8Convert(CString &str,int sourceCodepage,int targetCodepage)
{
	//CP_ACP=ANSI,CP_UTF8=utf-8   
     int len=str.GetLength();    
     int unicodeLen=MultiByteToWideChar(sourceCodepage,0,str,-1,NULL,0);    
     wchar_t * pUnicode;    
     pUnicode=new wchar_t[unicodeLen+1];    
     memset(pUnicode,0,(unicodeLen+1)*sizeof(wchar_t));    
     MultiByteToWideChar(sourceCodepage,0,str,-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);    
     CString rt;    
     rt.Format("%s",pTargetData);    
     delete pUnicode;    
     delete pTargetData;    
     return rt;    
}
能翻译成C#吗??
------解决方案--------------------
Encoding.UTF8.Getxxxx