특정 파일을 모니터링하여 새로운 라인이 쓰일 때 읽는 코드

 

아래 데이터 형식의 LOG.TXT 에서 읽어서 

[2024-06-11 오전 12:32:05] - 1 2
[2024-06-11 오전 12:32:06] - 3 4
[2024-06-11 오전 12:32:07] - 5 6
[2024-06-11 오전 12:32:08] - 7 8
[2024-06-11 오전 12:32:09] - 9 10
[2024-06-11 오전 12:32:10] - 11 12
[2024-06-11 오전 12:32:11] - 13 14
[2024-06-11 오전 12:32:12] - 15 16
[2024-06-11 오전 12:32:13] - 17 18
[2024-06-11 오전 12:32:14] - 19 20
[2024-06-11 오전 12:32:15] - 21 22
[2024-06-11 오전 12:32:16] - 23 24
[2024-06-11 오전 12:32:17] - 25 26
[2024-06-11 오전 12:32:18] - 27 28
[2024-06-11 오전 12:32:19] - 29 30

 

아래와 같이 두 수를 더해서 결과값을 읽음 

[2024-06-11 오전 12:34:48] 3
[2024-06-11 오전 12:34:48] 7
[2024-06-11 오전 12:34:48] 11
[2024-06-11 오전 12:34:48] 15
[2024-06-11 오전 12:34:48] 19
[2024-06-11 오전 12:34:48] 23
[2024-06-11 오전 12:34:48] 27
[2024-06-11 오전 12:34:48] 31
[2024-06-11 오전 12:34:48] 35
[2024-06-11 오전 12:34:48] 39
[2024-06-11 오전 12:34:48] 43
[2024-06-11 오전 12:34:48] 47
[2024-06-11 오전 12:34:48] 51
[2024-06-11 오전 12:34:48] 55
[2024-06-11 오전 12:34:49] 59

 

using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Threading; class Program     {         static void Main(string[] args)         {             while (!File.Exists("LOG.TXT"))             {                 Thread.Sleep(100);                 continue;             }             FileStream fs = new FileStream("LOG.TXT", FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);             StreamReader sr = new StreamReader(fs);             while (true)             {                 string line = sr.ReadLine();                 if (line == null)                 {                     Thread.Sleep(1);                     continue;                 } #if 0 //아래는 다른 표현방법                 string[] words = line.Split(new[] { " - " }, StringSplitOptions.None)[1].Split(' ');                int sum = int.Parse(words[0]) + int.Parse(words[1]); #else               string[] words = line.Split(" - ");                string command = words[0];                string[] nums = words[1].Split(' ');               int sum = int.Parse(nums[0]) + int.Parse(nums[1]); #endif                                  Console.WriteLine("[{0}] {1}", DateTime.Now, sum);                 Thread.Sleep(1);               }             sr.Close();         }     }