c++ files
// basic file operations
#include <iostream>
#include <fstream>
using namespace std;
int main () {
ofstream myfile;
myfile.open ("example.txt");
myfile << "Writing this to a file.\n";
myfile.close();
return 0;
}c++ files
// basic file operations
#include <iostream>
#include <fstream>
using namespace std;
int main () {
ofstream myfile;
myfile.open ("example.txt");
myfile << "Writing this to a file.\n";
myfile.close();
return 0;
}how to read and write in a file c++
#include <iostream>
#include <fstream>
using namespace std;
ifstream file_variable; //ifstream is for input from plain text files
file_variable.open("input.txt"); //open input.txt
file_variable.close(); //close the file stream
/*
Manually closing a stream is only necessary
if you want to re-use the same stream variable for a different
file, or want to switch from input to output on the same file.
*/
_____________________________________________________
//You can also use cin if you have tables like so:
while (cin >> name >> value)// you can also use the file stream instead of this
{
cout << name << value << endl;
}
_____________________________________________________
//ifstream file_variable; //ifstream is for input from plain text files
ofstream out_file;
out_file.open("output.txt");
out_file << "Write this scentence in the file" << endl;file c++
#include <iostream>
#include <string>
#include <fstream> //write and read
//#include <ifstream> //read
//#include <ofstream> //write
int main () {
std::string line;
std::ofstream myfileWrite;
std::ifstream myfileRead;
myfileWrite.open("example.txt");
myfileRead.open("example.txt");
myfileWrite << "Writing this to a file.\n";
while (getline(myfileRead,line)){
std::cout << line << '\n';
}
myfileWrite.close();
myfileRead.close();
return 0;
}Copyright © 2021 Codeinu
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