C# 集合 — Hashtable 线程安全

 1 private Hashtable _ht = Hashtable.Synchronized(new Hashtable());
 2         static void Main(string[] args)
 3         {
 4             new Program().TestLock();
 5             Console.WriteLine($"主线程：{Thread.CurrentThread.ManagedThreadId}");
 6             Console.ReadKey();
 7         }
 8 
 9         public void TestLock()
10         {
11             Task.Factory.StartNew(obj => SyncMethodA((string)obj), "laowang");
12             Task.Factory.StartNew(obj => SyncMethodB((string)obj), "liupangzi");
13             Thread.Sleep(6000);
14             Console.WriteLine($"输出值:{ _ht[0]}");
15         }
16 
17 
18         private void SyncMethodA(string param)
19         {
20             Console.WriteLine($"方法A线程：{Thread.CurrentThread.ManagedThreadId}");
21             lock (_ht.SyncRoot)
22             {
23                 Thread.Sleep(5000);
24                 _ht[0] = "SyncMethodA";
25                 Console.WriteLine($"A方法输出值:{ _ht[0]}");
26             }
27         }
28 
29         private void SyncMethodB(string param)
30         {
31             Console.WriteLine($"方法B线程：{Thread.CurrentThread.ManagedThreadId}");
32             Console.WriteLine($"B方法输出值:{ _ht[0]}");
33             _ht[0] = "SyncMethodB";
34         }