如何解析csv文件中的空值并在c#中初始化为默认值？

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string filePath = "path_to_your_csv_file.csv";
        
        using (StreamReader reader = new StreamReader(filePath))
        {
            while (!reader.EndOfStream)
            {
                string line = reader.ReadLine();
                string[] fields = line.Split(',');

                for (int i = 0; i < fields.Length; i++)
                {
                    if (string.IsNullOrEmpty(fields[i]))
                    {
                        fields[i] = "0"; // 将空值初始化为默认值
                    }
                }

                // 处理每行数据...
            }
        }
    }
}