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#include "stdafx.h"#include <iostream>using namespace std;#include <fstream>int _tmain(int argc, _TCHAR* argv[]){ int n = 50; char str[20]; // ofstream ofs("Test.txt"); // if (!ofs) cout << " .\n"; else { ofs << "Hello!\n" << n; // ofs.close(); } // ifstream file("Test.txt"); // if (!file) cout << " .\n"; else { file >> str >> n; cout << str << "\n" << n; // file.close(); } system("pause"); return 0;}
++ , , () .
2.
#include <iostream.h>
#include <fstream.h> // ofstream
#include <stdlib.h> // exit
int main()
{ char sim;
// ,
|
|
|
ofstream myfile("d:\oop\myfile.txt",ios::out);
if(!myfile)
{
cerr<<" myfile.txt"<<endl;
exit(1);
}
for(int i=1;i<10;i++){
cout<<" "<<endl;
cin>>sim;
myfile.put(sim); }
myfile<<endl;
return 0;
}
3.
#include <iostream.h>
//#include <fstream.h> // ofstream
#include <fstream.h>
#include <stdlib.h> // exit
int main()
{ char sim;
ifstream myfile("d:\oop\myfile.txt",ios::in);
if(!myfile)
{
cerr<<" myfile.txt"<<endl;
exit(1);
}
int nsim=0, kolstr=0;
while (myfile.get(sim)){
if (sim==char("\n"))
kolstr++;
else
nsim++;
cout.put(sim); }
cout<<endl<<endl<<"kolstr="<<kolstr<<" "<<"nsim="<<nsim<<endl;
cin>>nsim;
return 0;
}
4.
#include <iostream.h>
#include <fstream.h> // ofstream
#include <stdlib.h> // exit
int main()
{ char sim;
ofstream myfile("d:\oop\myfile.txt",ios::in); //
//
if(!myfile)
{
cerr<<" myfile.txt"<<endl;
exit(1);
}
for(int i=1;i<10;i++){........................}
cout<<" "<<endl;
cin>>sim;
myfile.put(sim); }
myfile<<endl;
return 0;
}
5.
#include <iostream.h>
#include <fstream.h> // ofstream
#include <stdlib.h> // exit
#define size 40
int main()
{ char sim,*filename;
cout<<" d:\oop\myfile.txt \n";
filename=new char(size);
cin.getline(filename,size);
ofstream myfile(filename,ios::out);
if(!myfile)
{
cerr<<" myfile.txt"<<endl;
cin>>sim;
exit(1);
}
for(int i=1;i<10;i++){.......... }
cout<<" "<<endl;
cin>>sim;
myfile.put(sim); }
myfile<<endl;
delete[]filename;
return 0;
}
