如何使用 FileHelpers 库从 csv 中仅读取一定数量的字段？

using FileHelpers;
using System;
using System.IO;

[DelimitedRecord(",")]
public class CsvData
{
    public int Field1;
    public string Field2;
    public DateTime Field3;
    public double Field4;
    public string Field5;
}

public class Program
{
    public static void Main()
    {
        var engine = new FileHelperEngine<CsvData>();
        var result = engine.ReadFile("input.csv");

        foreach (var record in result)
        {
            Console.WriteLine($"Field1: {record.Field1}, Field2: {record.Field2}, Field3: {record.Field3}, Field4: {record.Field4}, Field5: {record.Field5}");
        }
    }
}

public class CsvData
{
    public int Field1;
    public string Field2;
    public DateTime Field3;
}