CString s2utfs(const wstring& strSrc){string strRes;wstring wstrUni = strSrc;char* chUTF8 = new char[wstrUni.length() * 3];memset(chUTF8,0x00,wstrUni.length() * 3);CString strName = Uni2UTF(wstrUni,chUTF8, wstrUni.length() * 3);strRes = chUTF8; delete []chUTF8;return strName;}CString URLEncode( const wstring& strRes, char *utf8, int nMaxSize ){if (utf8 == NULL) {return L"";}CString strName;int len = 0;int size_d = nMaxSize;for (wstring::const_iterator it = strRes.begin(); it != strRes.end(); ++it){wchar_t wchar = *it;if (wchar < 0x80){
    strName += wchar;continue;}else if(wchar < 0x800){
    if (len + 1 >= size_d)return L"";utf8[len++] = 0xc0 | ( wchar >> 6 );utf8[len++] = 0x80 | ( wchar & 0x3f );}else if(wchar < 0x10000 ){
    if (len + 2 >= size_d)return L"";utf8[len++] = 0xe0 | ( wchar >> 12 );utf8[len++] = 0x80 | ( (wchar >> 6) & 0x3f );utf8[len++] = 0x80 | ( wchar & 0x3f );}else if( wchar < 0x200000 ) {
    if (len + 3 >= size_d)return L"";utf8[len++] = 0xf0 | ( (int)wchar >> 18 );utf8[len++] = 0x80 | ( (wchar >> 12) & 0x3f );utf8[len++] = 0x80 | ( (wchar >> 6) & 0x3f );utf8[len++] = 0x80 | ( wchar & 0x3f );}char *q = new char[40];char *p = utf8;for (int i = 0;i < 3;i++){char *q = new char[40];sprintf(q,"%x",*p++);strName += "%";strName += q;}len = 0;}strName.Replace(L"ffffff",L"");return strName;}