C++文件读取模版

综述

一个cpp的文件读取模版。

库

#include <fstream>
#include <string>

代码

string selected_poles_path = "/Users/frankdura/Desktop/a.txt";
//set the file path

    ifstream in(selected_poles_path);
    // init

while(    in >> label ){ // identify the selected poles!
	//reading	
        if(label == "v"){
        in >> pole_x >> pole_y >> pole_z;
        cout << pole_x << " " <<pole_y <<" "  <<pole_z<< endl;
        vector<int> pole;
        pole.push_back(pole_x);
        pole.push_back(pole_y);
        pole.push_back(pole_z);
        selected_poles_con.push_back(pole);
        }
    }
    in.close();