(エッセンス)2020年6月26日C#クラスライブラリファイル読み書き操作ヘルプクラス

14939 ワード

同前 C〓〓〓類庫/拡張方法同前 asp.net バックエンド

using System;
using System.IO;
using System.Text;

namespace Core.Util
{
    ///


    ///          
    /// 
    public class FileHelper
    {
        #region    

        ///


        ///         
        /// 
        ///     
        /// 
        public static bool Exists(string path)
        {
            return File.Exists(path);
        }

        ///


        ///          
        /// 
        /// 
        public static string GetCurrentDir()
        {
            return AppDomain.CurrentDomain.BaseDirectory;
        }

        #endregion

        #region    

        ///


        ///         
        ///  ：        ;           ,      
        /// 
        ///   
        ///     
        public static void WriteTxt(string content, string path)
        {
            WriteTxt(content, path, null, null);
        }

        ///


        ///         
        ///  ：       ;           ,      
        /// 
        ///   
        ///     
        ///   
        public static void WriteTxt(string content, string path, Encoding encoding)
        {
            WriteTxt(content, path, encoding, null);
        }

        ///


        ///         
        ///  ：       ,  UTF-8  
        /// 
        ///   
        ///     
        ///     
        public static void WriteTxt(string content, string path, FileMode fileModel)
        {
            WriteTxt(content, path, Encoding.UTF8, fileModel);
        }

        ///


        ///         
        ///  ：             
        /// 
        ///   
        ///     
        ///     
        ///     
        public static void WriteTxt(string content, string path, Encoding encoding, FileMode fileModel)
        {
            WriteTxt(content, path, encoding, (FileMode?)fileModel);
        }

        ///


        ///         
        ///  ：             
        /// 
        ///   
        ///     
        ///     
        ///     
        private static void WriteTxt(string content, string path, Encoding encoding, FileMode? fileModel)
        {
            encoding = encoding ?? Encoding.UTF8;
            fileModel = fileModel ?? FileMode.Create;
            string dir = Path.GetDirectoryName(path);
            if (!Directory.Exists(dir))
                Directory.CreateDirectory(dir);

            using (FileStream fileStream = new FileStream(path, fileModel.Value))
            {
                using (StreamWriter streamWriter = new StreamWriter(fileStream, encoding))
                {
                    streamWriter.Write(content);
                    streamWriter.Flush();
                }
            }
        }

        /// 
        ///          
        /// 
        ///     
        ///       （   D:\  \a.log）
        public static void WriteLog(string msg, string path = @"Log.txt")
        {
            string content = $"{DateTime.Now.ToCstTime().ToString("yyyy-MM-dd HH:mm:ss")}:{msg}";

            WriteTxt(content, $"{GetCurrentDir()}{content}");
        }

        #endregion
    }
}

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