C#写日志的方法

        /// 

        /// 日志
        /// 
        /// 
        public void log(string msg) {
            string path = "C:\\TopshelfTest.txt";
            FileStream fs = new FileStream(path, FileMode.Append);
            StreamWriter sw = new StreamWriter(fs);
            sw.WriteLine(DateTime.Now.ToString() + "   " + msg);
            sw.Close();
            fs.Close();
        }

  /// 

        /// 写日志 （如果文件打开 还能继续写入）
        /// 
        /// 文件名
        /// 类型
        /// 内容
        public static void WriteLogs(string fileName, string type, string content) {
    
                string path = AppDomain.CurrentDomain.BaseDirectory;
                if (!string.IsNullOrEmpty(path)) {
                    path = AppDomain.CurrentDomain.BaseDirectory + fileName;
                    if (!Directory.Exists(path)) {
                        Directory.CreateDirectory(path);
                    }
                    path = path + "\\" + DateTime.Now.ToString("yyyyMMdd");
                    if (!Directory.Exists(path)) {
                        Directory.CreateDirectory(path);
                    }
                    path = path + "\\" + DateTime.Now.ToString("HH") + ".txt";
                    if (!File.Exists(path)) {
                        FileStream fs = File.Create(path);
                        fs.Close();
                    }
                    if (File.Exists(path)) {
                        StreamWriter sw = new StreamWriter(path, true, System.Text.Encoding.Default);
                        sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + " >>> " + type + " >>> " + content);
                        sw.WriteLine("----------------------------------------");
                        sw.Close();
                    }
                
            }
        }