有以下程序:include<iostream>include<fstream>using namespace std;int main(){fstream file;fi
有以下程序:
include<iostream>
include<fstream>
using namespace std;
int main()
{
fstream file;
file.open("abc.txt", ios :: in);
if (!file )
{
cout<<"Can not open abc.txt"<<end1;
abort();
}
char buf[ 80 ];
int i = 0;
while (!file.eof())
{
file.getline(buf,80);
i++;
}
cout<<"Lines :"<<i<<end1;
file.close();
return 0;
}
程序实现的功能是【 】。