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

public class FileHelper
{
    /// <summary>
    /// 递归获取所有的目录
    </summary>
    <param name="strPath"></param>
    <param name="lstDirect"></param>
    static void GetAllDirectorys(string strPath,ref List<string> lstDirect)
    {
        if (Directory.Exists(strPath) == false)
        {
            Console.WriteLine("请检查，路径不存在：{0}",strPath);
            return;
        }
        DirectoryInfo diFliles = new DirectoryInfo(strPath);
        DirectoryInfo[] directories = diFliles.GetDirectories();
        var max = directories.Length;
        for (int dirIdx = 0; dirIdx < max; dirIdx++)
        {
            try
            {
                var dir = directories[dirIdx];
                //dir.FullName是某个子目录的绝对地址，把它记录起来
                lstDirect.Add(dir.FullName);
                GetAllDirectorys(dir.FullName,ref lstDirect);
            }
            catchcontinue;
            }
        }
    }

    <summary>  
     遍历当前目录及子目录，获取所有文件 
    </summary>  
    <param name="strPath">文件路径</param>  
    <returns>所有文件</returns>  
    static IList<FileInfo> GetAllFiles(string strPath)
    {
        List<FileInfo> lstFiles = new List<FileInfo>();
        List<string> lstDirect = new List<();
        lstDirect.Add(strPath);
        DirectoryInfo diFliles = null;
        GetAllDirectorys(strPath,1)"> lstDirect);

         lstDirect.Count;
        int idx = 0; idx < max; idx++
            {
                diFliles =  DirectoryInfo(lstDirect[idx]);
                lstFiles.AddRange(diFliles.GetFiles());
            }
            ;
            }
        }
         lstFiles;
    }
}

var currentDirectory = System.Environment.CurrentDirectory;当前程序的目录 var parentDirPath = .Empty; var parentDir = DirectoryInfo(currentDirectory).Parent; if (parentDir != ) { parentDirPath = parentDir.FullName; 上一级目录 } else { Console.WriteLine(ERROR：当前目录没有父级目录); }

读取所有内容 var fileContent = File.ReadAllText(versionFileName); 修改文本内容 File.WriteAllText(versionFileName,strNewVer);

using (var sw = new StreamWriter(FilePath))
{
	sw.Write(sb.ToString());
}

using (StreamWriter streamWriter = File.CreateText(resFileName)) { var fileInfos = FileHelper.GetAllFiles(targetPath); var fileMax = fileInfos.Count; int fileIdx = 0; fileIdx < fileMax; fileIdx++) { var fileInfo = fileInfos[fileIdx]; if (fileInfo.Extension != .Metavar filePath = fileInfo.FullName.Replace(parentDirPath,""); filePath = filePath.Replace(@"\",1)">/); var fileStr = string.Concat(filePath,1)">&if (fileLine < Int64.MaxValue) { fileLine += 1; } { overflowMsg = 文件行数太多啦，未统计。; } } } }