FileIO.cs

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using System;
using System.IO;
using System.Text;
using System.Configuration;
using System.Text.RegularExpressions;

namespace DataObject
{
    /// <summary>
    /// 文件读写
    /// </summary>
    public class FileIO {

        /// <summary>
        /// 写数据
        /// </summary>
        /// <param name="address">文件路径</param>
        /// <param name="rows">写入信息</param>
        public static void Write(string address,params string[] rows)
        {
            //判断文件是否存在
            if (!File.Exists(address))
            {
                //创建文件夹
                string path = Regex.Replace(address, @"[^\\]+$", "");
                if (!Directory.Exists(path)) Directory.CreateDirectory(path);
                //创建文件
                new FileStream(address, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite).Close();
            }
            //写入数据
            FileStream fs = new FileStream(address, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
            StreamWriter sw = new StreamWriter(fs, Encoding.GetEncoding(936));
            foreach (string s in rows){
                sw.WriteLine(s);
            }
            sw.Close();
            fs.Close();
        }

        /// <summary>
        /// 读取内容
        /// </summary>
        /// <param name="address">文件路径</param>
        /// <returns></returns>
        public static string Read(string address)
        {
            if (!File.Exists(address)) return string.Empty;
            StringBuilder builder = new StringBuilder(256);
            //读取数据
            FileStream fs = new FileStream(address, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
            StreamReader sr = new StreamReader(fs, Encoding.GetEncoding(936));
            string sd = "";
            while (sd != null){
                if ((sd = sr.ReadLine()) == null) break;
                builder.Append(sd);
            }
            sr.Close();
            fs.Close();
            return builder.ToString();
        }