第16周程序阅读（1）

#include <iostream>#include <fstream>using namespace std;int main(){    fstream outfile,infile;    outfile.open("data.dat",ios::out);    outfile<<"1111111111"<<endl;    outfile<<"aaaaaaaaaa"<<endl;    outfile<<"AAAAAAAAAA"<<endl;    outfile<<"**********"<<endl;    outfile.close();    infile.open("data.dat",ios::in);    char line[80];    int i=0;    while(!infile.eof())    {        i++;        infile.getline(line,sizeof(line));        cout<<i<<": "<<line<<endl;    }    infile.close();    return 0;}

运行结果