下面代码读文件的时候，注意会读回车。 

#include<iostream>
#include<algorithm>
#include <direct.h>
#include<fstream>

using namespace  std;


int a[1005];
int b[1005];
int main()
{
	/*char buf1[256];
	_getcwd(buf1, sizeof(buf1));
	printf("%s\n", buf1);*/


	ifstream myfile("myfile.txt");
	if (!myfile)
		cerr << "error_O_L" << endl;
	int i = 0;
	while (!myfile.eof()) //直到文件结尾
	{
		myfile >> a[i];
		i++;
	}
	myfile.close();
	for(int j = 0;j<i;j++)
		cout << a[j] << endl;
	return 0;
}