Windows 下關於轉碼的函數

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 1 std::string& MsgFieldList::GBToUTF8(std::string& des,const char* str) 2 { 3      WCHAR *strSrc; 4      TCHAR *szRes; 5  6      //獲得臨時變數的大小 7      int i = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0); 8      strSrc = new WCHAR[i+1]; 9      MultiByteToWideChar(CP_ACP, 0, str, -1, strSrc, i);10 11      //獲得臨時變數的大小12      i = WideCharToMultiByte(CP_UTF8, 0, strSrc, -1, NULL, 0, NULL, NULL);13      szRes = new TCHAR[i+1];14      int j=WideCharToMultiByte(CP_UTF8, 0, strSrc, -1, szRes, i, NULL, NULL);15 16      des = szRes;17      delete []strSrc;18      delete []szRes;19 20      return des;21 }

反轉代碼：

 1 std::string& MsgFieldList::UTF8ToGB(std::string& des,const char* str) 2 { 3      WCHAR *strSrc; 4      TCHAR *szRes; 5  6      //獲得臨時變數的大小 7      int i = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0); 8      strSrc = new WCHAR[i+1]; 9      MultiByteToWideChar(CP_UTF8, 0, str, -1, strSrc, i);10 11      //獲得臨時變數的大小12      i = WideCharToMultiByte(CP_ACP, 0, strSrc, -1, NULL, 0, NULL, NULL);13      szRes = new TCHAR[i+1];14      WideCharToMultiByte(CP_ACP, 0, strSrc, -1, szRes, i, NULL, NULL);15 16      des = szRes;17      delete []strSrc;18      delete []szRes;19 20      return des;21 }

 

Windows 下關於轉碼的函數