C#使用streamreader查找文件中每个第X个值的平均值

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string filePath = "path/to/your/file.txt"; // 替换为实际文件路径

        int targetIndex = 3; // 第X个值，这里假设为第3个值

        double sum = 0;
        int count = 0;

        using (StreamReader reader = new StreamReader(filePath))
        {
            string line;
            while ((line = reader.ReadLine()) != null)
            {
                string[] values = line.Split(','); // 假设以逗号分隔每个值

                if (values.Length >= targetIndex)
                {
                    double value = Convert.ToDouble(values[targetIndex - 1]); // 第X个值的索引为targetIndex-1
                    sum += value;
                    count++;
                }
            }
        }

        double average = sum / count;

        Console.WriteLine("每个第{0}个值的平均值为：{1}", targetIndex, average);
    }
}