C# 一些自己需要知道的事情

  [ThreadStaticAttribute]
    static int currId;

double dValue = unchecked( (double)nValue));

Thread.Sleep和Timer性能比较

应该是Thread.Sleep比较好

http://www.cnblogs.com/dataflow/archive/2009/03/11/1408731.html

lambda的一个应用

1. Thread t1 = new Thread(() =>
   
2.     {
   
3.         Thread.Sleep(1000);
   
4.         Thread t = Thread.CurrentThread;
   
5.         Console.WriteLine("Name: " + t.Name);
   
6.         Console.WriteLine("ManagedThreadId: " + t.ManagedThreadId);
   
7.         Console.WriteLine("State: " + t.ThreadState);
   
8.         Console.WriteLine("Priority: " + t.Priority);
   
9.         Console.WriteLine("IsBackground: " + t.IsBackground);
   
10.         Console.WriteLine("IsThreadPoolThread: " + t.IsThreadPoolThread);
    
11.     })
    
12.     {
    
13.         Name = "Thread1",
    
14.         Priority = ThreadPriority.Highest
    
15.     };

多线程与并行

http://www.pin5i.com/showtopic-26814.html

那么，我们如何知道线程池中的线程都运行结束了呢，可以想到上文用过的Monitor结构：

1. Stopwatch sw = Stopwatch.StartNew();
   
2. for (int i = 0; i < totalThreads; i++)
   
3. {
   
4.     ThreadPool.QueueUserWorkItem(o =>
   
5.     {
   
6.         Thread.Sleep(1000);
   
7.         int a, b;
   
8.         ThreadPool.GetAvailableThreads(out a, out b);
   
9.         Console.WriteLine(string.Format("({0}/{1}) #{2} : {3}", a, b, Thread.CurrentThread.ManagedThreadId, DateTime.Now.ToString("mm:ss")));
   
10.         lock (locker)
    
11.         {
    
12.             runningThreads--;
    
13.             Monitor.Pulse(locker);
    
14.         }
    
15. 
    
16.     });
    
17. }
    
18. 
    
19. lock (locker)
    
20. {
    
21.     while (runningThreads > 0)
    
22.         Monitor.Wait(locker);
    
23. }
    
24. 
    
25. Console.WriteLine(sw.ElapsedMilliseconds);
    
26. Console.ReadLine();
    

复制代码

界面假死的解决方法:

http://www.pin5i.com/showtopic-26820.html

LINQ 比较自定义的类型，很有用！

http://www.cnblogs.com/tianfan/archive/2010/03/06/how-to-use-linq-methods-to-compare-objects-of-custom-types.html

并行很好的文章

http://blog.csdn.net/xuzhongxuan/article/details/6288105

关于Task的，还涉及到异常

http://www.cnblogs.com/yanyangtian/archive/2010/06/01/1749199.html

d:/projects/TaskTest 就是里面的一个例子

int[] 的类型是  int[]

父类型是 Array

IsArray

GetElementType 将返回 int