c++宽字符与多字节之间转换char—wchar，wchar-char



WCHAR exeFullPath[MAX_PATH];//定义wchar宽字符
   //获取转换所需的目标缓存大小  
   DWORD dBufSize = WideCharToMultiByte(CP_OEMCP, 0, exeFullPath, -1, NULL, 0, NULL, FALSE);
   char path[MAX_PATH] = {0};//分配目标缓存 
  //转换  
   int nRet = WideCharToMultiByte(CP_OEMCP, 0, exeFullPath, -1, path, dBufSize, NULL, FALSE);
        //
 反转换char path[260];//定义char缓冲区
 WCHAR wszClassName[256] = {0};//定义宽字符缓冲区
   memset(wszClassName, 0, sizeof(wszClassName));
   MultiByteToWideChar(CP_ACP, 0, path, strlen(path) + 1, wszClassName,
    sizeof(wszClassName) / sizeof(wszClassName[0]));