#include<fstsream>

using namespace std;

int main()

{

ifstream infile("f1.txt", ios::in | ios::_Nocreate);

if (!infile)

{

cerr << "open error!" << endl;

exit(1);

}

ifstream *in = new ifstream;

char* buffer = new char[256];

if (!in->eof())

{

in->getline(buffer, 256);

cout << buffer << endl;

}

system("pause");

return 0;

}

代码是这样的  没显示出错 但就是控制退出