Точки

using System;
using System.IO;
using System.Text;
namespace Dots
{
    class Program
    {
        static void Main(string[] args)
        {
            //directory for example E:\Tekst.txt

            Console.WriteLine("Pleae, write the directroy of the .txt file you would like to check!\nExample:\"E:\\Tekst.txt\"");
            string directory = Console.ReadLine();
            string txt = File.ReadAllText(@$"{directory}");

            int comasCounter = 0;
            int dotsCounter = 0;
            int numbers = 0;
            bool lastCharIsDigit = false;


            foreach  (char ch in txt)
            {
                if (ch == 44)
                {
                    comasCounter++;
                    lastCharIsDigit = false;
                }
                else if (ch == 46)
                {
                    dotsCounter++;
                    lastCharIsDigit = false;
                }else if (Char.IsDigit(ch) && lastCharIsDigit==false)
                {
                    lastCharIsDigit = true;
                    numbers++;
                }
                else if(Char.IsDigit(ch) && lastCharIsDigit == true)
                {
                    lastCharIsDigit = true;
                }
                else
                {
                    lastCharIsDigit = false;
                }

            }
            Console.WriteLine($"Count of dots: {dotsCounter}\nCount of comas: {comasCounter}\nNumbers in txt: {numbers}");



        }
    }
}