open改为ofs.open(name, std::ios::out | std::ios::binary);就对了！原因应该是ofstream打开⽂件时默认是⽂本格式吧。。。void open(const char *_Filename,ios_base::openmode _Mode = ios_base::out,int _Prot = (int)ios_base::_Open
原因应该是ofstream打开文件时默认是文本格式吧。。。 void open( const char *_Filename, ios_base::openmode_Mode= ios_base::out, int_Prot= (int)ios_base::_Openprot ); void open( const char *_Filename, ios_base::openmode_Mode); void open( const wchar_t *_Filename, ios_base::openm...
例如,可以使用std::ofstream类打开一个文件,如下所示: 代码语言:txt 复制 std::ofstream file("filename.bin", std::ios::binary); 这里的"filename.bin"是要写入的文件名,std::ios::binary表示以二进制模式打开文件。 将内容写入文件,可以使用文件流的write()方法将内容写入文件。例如,可以使用以...
ofstream以及fstream 这三个类了(ofstream是从内存到硬盘，ifstream是从硬盘到内存)，也就可以用这三个类...
std::ofstream out_; };// A reader of the format produced by ProtoStreamWriter.classProtoStreamReader:publicProtoStreamReaderInterface {public:explicitProtoStreamReader(conststd::string& filename); ~ProtoStreamReader() =default;ProtoStreamReader(constProtoStreamReader&) =delete; ...
std::string filename = "bla bla" ; /// based on some logic std::ofstream stream(filename); stream << data1; ... stream.close(); ...………...…...………...………...………...…...………. Observation: Logs from the machine where file is not getting generated : f...
std :: ifstream f (fname.c_str (), std :: ios :: binary); std :: ofstream f (save_to.c_str (), std :: ios :: binary); vector<Buffer> desempaquetar(Path const& fname, Path const& dname) { std::ifstream f(fname.c_str(), std::ios::binary); ifbuf wr(f); auto par...
#include <iostream> #include <fstream> #include <string> int main() { std::string filename = "Test.b"; { std::ofstream ostrm(filename, std::ios::binary); double d = 3.14; ostrm.write(reinterpret_cast<char*>(&d), sizeof d); // 二进制输出 ostrm << 123 << "abc" << '\...
basic_ofstream(); (1) explicitbasic_ofstream(constchar*filename, std::ios_base::openmodemode =std::ios_base::out); (2) explicitbasic_ofstream(conststd::filesystem::path::value_type*filename, std::ios_base::openmodemode =std::ios_base::out); ...
> class basic_ofstream : public std::basic_ostream<CharT, Traits> 类模板 basic_ofstream 实现文件上基于流的高层输出操作。它将 std::basic_ostream 的高层接口赋予基于文件的流缓冲(std::basic_filebuf)。 std::basic_ofstream 的典型实现只保有一个非派生成员:一个 std::basic_filebuf<CharT, Traits>...