[C#]获取指定路径下所有文件（含所有子目录）文件全路径并获取文件大小

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;

namespace 遍历文件夹和子文件夹
{
    class Program
    {
        static void Main(string[] args)
        {
            string strWriteLinePath;
            int intLv = 0;
            Console.WriteLine("请输入路径：");
            strWriteLinePath = Console.ReadLine();
            strWriteLinePath.Replace('\\', '/');
            Console.WriteLine("遍历结果如下：");
            listDirectory(strWriteLinePath, intLv);
            Console.WriteLine("请按任意键继续……");
            Console.ReadKey();
        }

        public static string CountSize(long Size)
        {
            string m_strSize = "";
            long FactSize = 0;
            FactSize = Size;
            if (FactSize < 1024.00)
                m_strSize = FactSize.ToString("F2") + " Byte";
            else if (FactSize >= 1024.00 && FactSize < 1048576)
                m_strSize = (FactSize / 1024.00).ToString("F2") + " KByte";
            else if (FactSize >= 1048576 && FactSize < 1073741824)
                m_strSize = (FactSize / 1024.00 / 1024.00).ToString("F2") + " MByte";
            else if (FactSize >= 1073741824)
                m_strSize = (FactSize / 1024.00 / 1024.00 / 1024.00).ToString("F2") + " GByte";
            return m_strSize;
        }

        public static int GetFilesCount(DirectoryInfo dirInfo)
        {

            int intTotFile = 0;
            intTotFile += dirInfo.GetFiles().Length;//获取全部文件
            //totalFile += dirInfo.GetFiles("*.*").Length;//获取某种格式
            foreach (System.IO.DirectoryInfo subdir in dirInfo.GetDirectories())
            {
                intTotFile += GetFilesCount(subdir);
            }
            return intTotFile;
        }

        private static void listDirectory(string strPATH, int intLV)
        {
            DirectoryInfo theFolder = new(@strPATH);
            intLV++;
            int intResult = GetFilesCount(theFolder);
            Console.WriteLine("[" + strPATH + "]共含有" + intResult + "个文件");

            //遍历文件
            foreach (FileInfo File in theFolder.GetFiles())
            {
                for (int i = 0; i < intLV; i++) Console.Write("");
                string strFullPath = strPATH + "\\" + File.Name;
                Console.Write(strFullPath);
                string strSize = "\t" + File.Length + "字节" + "=" + CountSize(File.Length);
                Console.WriteLine(strSize);
            }
            //遍历文件夹
            foreach (DirectoryInfo NextFolder in theFolder.GetDirectories())
            {
                for (int i = 0; i < intLV; i++) Console.Write("-");
                Console.Write(">");
                Console.WriteLine(NextFolder.Name);
                listDirectory(NextFolder.FullName, intLV);
            }
        }
    }
}