File

:material-circle-edit-outline: 约 2 个字 :fontawesome-solid-code: 8 行代码

I/O

#include <ifstream>     //read
#include <ofstream>     //write

ofstream f1 ("C:\\test.txt");
f1 << "hello" << std::endl;
fstream f2 ("C:\\test.txt");
std::string str;
f2 >> str;