using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;namespace ReadLog.Public{    public class FileHelper    {        string[] format = { "*.jpg", "*.doc", "*.exe", "*.pdf", "*.xls" };        #region 讀取文件 +string ReadFile(string path)        /// <summary>        /// 讀取文件        /// </summary>        /// <param name="path">文件路徑</param>        public string ReadFile(string path)        {            //FileStream sFile = new FileStream(path, FileMode.Open);            //byte[] byData = http://www.mamicode.com/new byte[sFile.Length];>//sFile.Read(byData, 0, byData.Length);            //string fileContent = System.Text.Encoding.UTF8.GetString(byData);            //return fileContent;            string content = String.Empty;            StreamReader reader = new StreamReader(path, GetFileEncodeType(path));            return reader.ReadToEnd();        }        #endregion        #region 删除文件夹下面所有文件 void deleteAll(string delpath, string geshi)        /// <summary>          /// 删除文件夹下面所有文件          /// </summary>          /// <param name="oldpngPath">待删除文件路径</param>          /// <param name="newpngPath">删除到的新目录</param>          /// <param name="geshi">操作文件的格式 例如:*.png、*.xml</param>          public void deleteAll(string delpath, string geshi)        {            string[] files = Directory.GetFiles(delpath, geshi);            foreach (string file in files)            {                File.Delete(file);            }        }        #endregion        #region 複製文件夹下面所有文件 +void copyALl(string oldpngPath, string newpngPath, string geshi)        /// <summary>          /// 複製文件夹下面所有文件        /// </summary>          /// <param name="oldpngPath">待复制文件路径</param>          /// <param name="newpngPath">复制到的新目录</param>          /// <param name="geshi">操作文件的格式 例如:*.png、*.xml</param>          public void copyALl(string oldpngPath, string newpngPath, string geshi)        {            string[] files = Directory.GetFiles(oldpngPath, geshi);            foreach (string file in files)            {                string otherFile = Path.Combine(oldpngPath, Path.GetFileName(file));                File.Copy(file, newpngPath + "\\" + Path.GetFileName(file));            }        }        #endregion        #region 移动文件夹下的所有文件   void moveAll(string olderpath, string topath)        /// <summary>          /// 移动文件夹下的所有文件          /// </summary>          /// <param name="olderpath">待移动的文件目录</param>          /// <param name="topath">新目录</param>          public void moveAll(string olderpath, string topath)        {            string[] files = Directory.GetFiles(olderpath, format[0]);            foreach (string file in files)            {                File.Move(file, topath); //移动文件              }        }        #endregion        #region 獲取一個文件夾下面所有文件 +string[] GetAllFiles(string path, string geshi)        /// <summary>        /// 獲取一個文件夾下面所有文件        /// </summary>        /// <param name="path"></param>        /// <param name="geshi">文件類型</param>        /// <returns></returns>        public string[] GetAllFiles(string path, string geshi)        {            string[] files = Directory.GetFiles(path, geshi);            return files;        }        #endregion        #region 複製單個文件 + void copyOneFile(string oldfilePath, string newfilePath)        /// <summary>        /// 複製單個文件        /// </summary>        /// <param name="oldfilePath">文件原來的全路徑</param>        /// <param name="newfilePath">文件新的全路徑</param>        public void copyOneFile(string oldfilePath, string newfilePath, string newFileName)        {            if (!Directory.Exists(newfilePath))            {                Directory.CreateDirectory(newfilePath);            }            File.Copy(oldfilePath, newfilePath + newFileName);        }        #endregion        #region 移動一個文件 + void MoveOneFile(string oldfilePath, string newfilePath)        /// <summary>        /// 移動一個文件        /// </summary>        /// <param name="oldfilePath">文件原來的全路徑</param>        /// <param name="newfilePath">文件新的全路徑</param>        public void MoveOneFile(string oldfilePath, string newfilePath, string newFileName)        {            if (!Directory.Exists(newfilePath))            {                Directory.CreateDirectory(newfilePath);            }            File.Move(oldfilePath, newfilePath + newFileName);        }        #endregion        #region 刪除一個文件 +void DeleteOneFile(string oldfilePath)        /// <summary>        /// 刪除一個文件         /// </summary>        /// <param name="oldfilePath">文件路徑</param>        public void DeleteOneFile(string oldfilePath)        {            File.Delete(oldfilePath);        }        #endregion        #region 讀取目錄的時候進行的提示        public void ReadFileLogOnly(string path)        {            Console.WriteLine(string.Format("正在進入{0}目錄中", path));            if (!Directory.Exists(path))            {                Console.WriteLine(String.Format("文件目錄{0}不存在", path));                //return;                //Directory.CreateDirectory(erpLogPath);            }            else            {                Console.WriteLine(String.Format("文件目錄{0}訪問正常", path));            }        }        public void ReadFileLogAndCreate(string path)        {            Console.WriteLine(string.Format("正在進入{0}目錄", path));            if (!Directory.Exists(path))            {                Console.WriteLine(String.Format("文件目錄{0}不存在，正在進行創建", path));                Directory.CreateDirectory(path);                Console.WriteLine(String.Format("文件目錄{0}創建成功", path));            }            else            {                Console.WriteLine(String.Format("文件目錄{0}訪問正常", path));            }        }        #endregion        #region 獲取問價的編碼方式 +System.Text.Encoding GetFileEncodeType(string filename)        /// <summary>        /// 獲取問價的編碼方式        /// </summary>        /// <param name="filename">文件路徑</param>        /// <returns>文件的編碼方式</returns>        public System.Text.Encoding GetFileEncodeType(string filename)        {            System.IO.FileStream fs = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);            System.IO.BinaryReader br = new System.IO.BinaryReader(fs);            Byte[] buffer = br.ReadBytes(2);            if (buffer[0] >= 0xEF)            {                if (buffer[0] == 0xEF && buffer[1] == 0xBB)                {                    return System.Text.Encoding.UTF8;                }                else if (buffer[0] == 0xFE && buffer[1] == 0xFF)                {                    return System.Text.Encoding.BigEndianUnicode;                }                else if (buffer[0] == 0xFF && buffer[1] == 0xFE)                {                    return System.Text.Encoding.Unicode;                }                else                {                    return System.Text.Encoding.Default;                }            }            else            {                return System.Text.Encoding.Default;            }        }         #endregion    }}