c# 多线程 执行顺序

Question

需求描述：用一个线程池处理读取到的文件信息，但是 while 之后有一块代码始终没有走不知道为什么?

代码：

 public static void ListLine()
        {
            using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read))
            {
                fs.Position = position;
                using (StreamReader sr = new StreamReader(fs, Encoding.UTF8))
                {
                    string line = string.Empty;
                    List<string> listStr = new List<string>();
                    AnalyticalArithmetic analytickal;
                    while ((line = sr.ReadLine()) != null)
                    {
                        if (listStr.Count == 100)
                        {
                            analytickal = new AnalyticalArithmetic();
                            analytickal.listStr = listStr;
                            ThreadPool.QueueUserWorkItem(analytickal.test);
                            listStr = new List<string>();
                        }
                        listStr.Add(line);
                    }
                    //断点未到达这里
                    analytickal = new AnalyticalArithmetic();
                    analytickal.listStr = listStr;
                    ThreadPool.QueueUserWorkItem(analytickal.test);
                    position = fs.Length;
                }
            }

        }

Answer 1

经过仔细调戏，数据库链接池中连接数满了，没有做连接释放