1.宣告CancellationTokenSource物件

/// <summary>執行緒控制器管理</summary>
        private CancellationTokenSource cancellationManage;

2.例項化CancellationTokenSource物件，此物件管理取消通知並將其傳送給單個取消標記。並進行註冊回撥事件

// 初始化執行緒控制並註冊回撥函式
cancellationManage = new CancellationTokenSource();

cancellationManage.Token.Register(CallStopThread);

3.Cancel();方法呼叫會設定cancellationManage.IsCancellationRequested為True;

呼叫CancellationTokenSource.Cancel方法以提供取消通知。這會將CancellationToken.IsCancellationRequested取消標記的每個副本上的屬性設定為true

cancellationManage.Cancel();

測試Demo:

 1  class Program
 2     {
 3         private static CancellationTokenSource cts = null
 
;
 4 
 5         static void Main(string[] args)
 6         {
 7             while (true)
 8             {
 9                 Console.WriteLine("1.開始執行多執行緒");
10                 Console.WriteLine("2.取消多執行緒");
11                 switch (Console.ReadLine())
12                 {
13                     case
 
 "1":
14                         BeginThread();
15                         break;
16                     case "2":
17                         CancelThread();
18                         break;
19                     default:
20                         break;
21                 }
22             }
23 
24            // Console.ReadKey();
25         }
26 
27         /// <summary>
28         /// 回撥停止方法
29         /// </summary>
30         private static void CallStopThread()
31         {
32             Console.WriteLine("回撥停止方法");
33         }
34 
35         /// <summary>
36         /// 取消方法
37         /// </summary>
38         private static void CancelThread()
39         {
40             cts.Cancel();
41         }
42 
43         /// <summary>
44         /// 開始執行執行緒方法
45         /// </summary>
46         private static void StartThread()
47         {
48             for (int i = 0; i < 1000000; i++)
49             {
50                 if (cts.IsCancellationRequested) break;
51                 Console.WriteLine($"開始執行執行緒方法,執行緒ID：{Thread.CurrentThread.ManagedThreadId}");
52                 Thread.Sleep(1000);
53             }
54         }
55 
56         /// <summary>
57         /// 開始執行執行緒
58         /// </summary>
59         private static void BeginThread()
60         {
61             Console.WriteLine("開始執行1方法");
62             cts = new CancellationTokenSource();
63             cts.Token.Register(CallStopThread);
64 
65             Thread[] ths = new Thread[3];
66             for (int i = 0; i < ths.Count(); i++)
67             {
68                 ths[i] = new Thread(StartThread);
69                 ths[i].Start();
70             }
71             
72         }
73     }