小玩文件2

#include <iostream>
#include <cstdlib>
#include <fstream>
using namespace std;
int main()
{
fstream outfile,infile;
infile.open("abc.txt",ios::in);
if(!infile)
{
cout<<"Can’t open the file."<<endl;
abort();
}
outfile.open("newabc.txt",ios::out);
if(!outfile)
{
cout<<"Can’t open the file."<<endl;
abort();
}
char buf[80];
int i=1;
while(!infile.eof())
{
infile.getline(buf, 80);
outfile<<i++<<": "<<buf<<endl;
}
infile.close();
outfile.close();
return 0;
}