C++读文件不省略空白（空格||换行）

#include<iostream>
#include<fstream>
#include<string>
using namespace std;

int main()
{
	//ofstream ofs("fileName",ios::out | ios::app);
	//ofs << "最  sdf\ 刷\\n你" << endl;
	char s;
	//cin >> s;

	ifstream ifs("2.txt", ios::in );
	ifs>> noskipws;
	while (!ifs.eof())
	{
		ifs >> s;
		cout << s;
	}
	//ofs.close();
	ifs.close();
	return 0;
}