批量读取txt 里面的东西

#include<iostream>
#include<fstream>
#include<string>


using namespace std;


void main()
{
string buff = "D:\\test.txt";
ifstream infile;
ofstream outfile;


infile.open(buff.c_str());


if(!infile)
cout<<"error"<<buff<<endl;






while(getline(infile, buff))
cout<<buff<<endl;


infile.close();

return;


}