文件格式中的\ t将两位数数字推得更远

Question

我正在尝试在输出文件中以某种格式打印一些值和文本，并且我正在使用\n和\t转义字符来实现格式。但是，我注意到，\t\t\t前面有一个两位数的数字时，后面的值比一位数字时更远（请参阅下面的output.txt）。我可以为此做些什么，还是有更好的方法在c ++中以某些方式对齐文本？

parking.cpp：

#include <iostream>
#include <fstream>
#include <vector>
#include "helper.h"

using namespace Stelios;
using namespace std;

int main() { // Stelios Papamichail csd4020
    string fileName = "output.txt";
    my_class mc; // instance of my_class from helper.h
    vector<int> hours;
    int totalCharges = 0;
    int totalHours = 0;

    ofstream ofs(fileName.c_str(),ios_base::app); // Try opening/creating a file for writing(in append mode)

    if(!ofs) { // if we couldn't create/open the file for writing, exit
        cout << "Error opening output file " << fileName << endl;
        exit(-2);
    }

    ofs << "Customer No. \t Hours \t Charges\n\n";

    mc.fillVector(hours,"Please enter how many hours each of the five customers spent in the parking lot:\n","Error : that was not a number. Please try again\n");
    for(int i = 0; i < 5; i++) {
        ofs << "No. " << i+1 << " \t\t\t " << hours[i] << " \t\t\t " << mc.calculateCharges(hours[i]) << endl;
        totalCharges += mc.calculateCharges(hours[i]);
        totalHours += hours[i];
    }
    ofs << "\n\nTotal Hours : " << totalHours << "\nTotal Charges : " << totalCharges << " EUR" << endl;
    return 0;
} 

output.txt：

Customer No.     Hours   Charges

No. 1            5           4
No. 2            24              23
No. 3            24              23
No. 4            5           4
No. 5            5           4


Total Hours : 63
Total Charges : 58 EUR