返回最后一个输入操作读取的字符数目。 可以修改这个返回值的函数有:get,getline,ignore,peek,read,readsome,putbackandunget. 其中函数peek, putback and unget被调用后gcount()返回值为0。 9.istream::get 1single character (1)://读取一个字符,遇到'\n',也从流中取出。2intget();//字符按 int 返回3...
C++ 通过以下几个类支持文件的输入输出： ofstream: 写操作（输出）的文件类 (由ostream引申而来) ifst...
std::basic_istream::readsome std::basic_istream::seekg std::basic_istream::sentry std::basic_istream::swap std::basic_istream::sync std::basic_istream::tellg std::basic_istream::unget std::basic_istringstream std::basic_istringstream::basic_istringstream std::basic_istringstream::rdbuf ...
readsome 提取已经可用的字符区块 (std::basic_istream<CharT,Traits>的公开成员函数) gcount 返回上次无格式输入操作提取的字符数量 (std::basic_istream<CharT,Traits>的公开成员函数) 寻位 tellg 返回输入位置指示器 (std::basic_istream<CharT,Traits>的公开成员函数) ...
If you usestd::wifstreamthen you have to install a UTF-8 filter on it to make it work anyway. And since no compiler yet supports <codecvt> there's not much point. Just open the file with astd::ifstream, read a line with astd::string, and convert it to astd::wstringusing something...
readsome extracts already available blocks of characters (public member function of std::basic_istream<CharT,Traits>) gcount returns number of characters extracted by last unformatted input operation (public member function of std::basic_istream<CharT,Traits>) Positioning tellg returns the...
readsome extrait des blocs déjà disponibles de caractères Original: extracts already available blocks of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique de std::basic...