12.15.cpp

这是C++的一部分练习程序!对初学者有一定的帮助作用。

#include <iostream.h>
#include <fstream.h>
#include <stdlib.h>
void main()
{
	fstream infile,outfile;
	infile.open("f1.txt",ios::in);
	if(!infile)
	{
		cerr<<"f1.txt can't open.\n";
		abort();
	}
	outfile.open("f2.txt",ios::out);
	if(!outfile)
	{
		cerr<<"f2.txt can't open.\n";
		abort();
	}
	char ch;
	while(infile.get(ch))
	    outfile.put(ch);
	infile.close();
	outfile.close();
}