using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;namespace BigData.Common.File
{/// <summary>/// 文件操作类/// </summary>public class FileHelper{/// <summary>/// 写入一行数据/// </summary>/// <param name="path"></param>/// <param name="str"></param>/// <param name="isAppend"></param>/// <returns></returns>public static bool WriteLine(string path, string str, bool isAppend = true){try{StreamWriter sw = new StreamWriter(path, isAppend);sw.WriteLine(str);sw.Flush();sw.Close();}catch (Exception){return false;}return true;}/// <summary>/// 读取文件所有内容/// </summary>/// <param name="path"></param>/// <returns></returns>public static string ReadAll(string path){string result = string.Empty;try{StreamReader sr = new StreamReader(path);result = sr.ReadToEnd();sr.Close();}catch (Exception){return string.Empty;}return result;}/// <summary>/// 写入文本/// </summary>/// <param name="path"></param>/// <param name="str"></param>/// <returns></returns>public static bool WriteToTxt(string path, string str){try{FileStream fs = new FileStream(path, FileMode.Append);byte[] bs = Encoding.Default.GetBytes(str);fs.Write(bs, 0, bs.Length);fs.Flush();fs.Close();}catch (Exception){return false;}return true;}/// <summary>/// 读取文本/// </summary>/// <param name="path"></param>/// <returns></returns>public static string ReadTxt(string path){string result = string.Empty;try{FileStream fs = new FileStream(path, FileMode.OpenOrCreate);byte[] bs = new byte[fs.Length];fs.Read(bs, 0, bs.Length);result = Encoding.Default.GetString(bs);fs.Close();}catch (Exception){return string.Empty;}return result;}}
}