C#多线程

 1  class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             //创建无参的线程
 6             Thread thread1 = new Thread(new ThreadStart(Thread1));
 7             //调用Start方法执行线程
 8             thread1.Start();
 9 
10             Console.ReadKey();
11         }
12 
13         /// <summary>
14         /// 创建无参的方法
15         /// </summary>
16         static void Thread1()
17         {
18             Console.WriteLine("这是无参的方法");
19         }
20     }

 1  class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             //创建ThreadTest类的一个实例
 6             ThreadTest test=new ThreadTest();
 7             //调用test实例的MyThread方法
 8             Thread thread = new Thread(new ThreadStart(test.MyThread));
 9             //启动线程
10             thread.Start();
11             Console.ReadKey();
12         }
13     }
14 
15     class ThreadTest
16     {
17         public void MyThread()
18         {
19             Console.WriteLine("这是一个实例方法");
20         }
21     }

 1  static void Main(string[] args)
 2  {
 3        //通过匿名委托创建
 4        Thread thread1 = new Thread(delegate() { Console.WriteLine("我是通过匿名委托创建的线程"); });
 5        thread1.Start();
 6        //通过Lambda表达式创建
 7        Thread thread2 = new Thread(() => Console.WriteLine("我是通过Lambda表达式创建的委托"));
 8        thread2.Start();
 9        Console.ReadKey();
10  }

 1  class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             //通过ParameterizedThreadStart创建线程
 6             Thread thread = new Thread(new ParameterizedThreadStart(Thread1));
 7             //给方法传值
 8             thread.Start("这是一个有参数的委托");
 9             Console.ReadKey();
10         }
11 
12         /// <summary>
13         /// 创建有参的方法
14         /// 注意：方法里面的参数类型必须是Object类型
15         /// </summary>
16         /// <param name="obj"></param>
17         static void Thread1(object obj)
18         {
19             Console.WriteLine(obj);
20         }
21     }

 1     static void Main(string[] args)
 2         {
 3             //获取正在运行的线程
 4             Thread thread = Thread.CurrentThread;
 5             //设置线程的名字
 6             thread.Name = "主线程";
 7             //获取当前线程的唯一标识符
 8             int id = thread.ManagedThreadId;
 9             //获取当前线程的状态
10             ThreadState state= thread.ThreadState;
11             //获取当前线程的优先级
12             ThreadPriority priority= thread.Priority;
13             string strMsg = string.Format("Thread ID:{0}\n" + "Thread Name:{1}\n" +
14                 "Thread State:{2}\n" + "Thread Priority:{3}\n", id, thread.Name,
15                 state, priority);
16 
17             Console.WriteLine(strMsg);
18                       
19             Console.ReadKey();
20         }

 1 class Program
 2     {
 3         static void Main(string[] args)
 4         {                   
 5             //演示前台、后台线程
 6             BackGroundTest background = new BackGroundTest(10);
 7             //创建前台线程
 8             Thread fThread = new Thread(new ThreadStart(background.RunLoop));
 9             //给线程命名
10             fThread.Name = "前台线程";
11             
12 
13             BackGroundTest background1 = new BackGroundTest(20);
14             //创建后台线程
15             Thread bThread = new Thread(new ThreadStart(background1.RunLoop));
16             bThread.Name = "后台线程";
17             //设置为后台线程
18             bThread.IsBackground = true;
19 
20             //启动线程
21             fThread.Start();
22             bThread.Start();
23         }
24     }
25 
26     class BackGroundTest
27     {
28         private int Count;
29         public BackGroundTest(int count)
30         {
31             this.Count = count;
32         }
33         public void RunLoop()
34         {
35             //获取当前线程的名称
36             string threadName = Thread.CurrentThread.Name;
37             for (int i = 0; i < Count; i++)
38             {
39                 Console.WriteLine("{0}计数：{1}",threadName,i.ToString());
40                 //线程休眠500毫秒
41                 Thread.Sleep(1000);
42             }
43             Console.WriteLine("{0}完成计数",threadName);
44             
45         }
46     }

 1 class Program
 2     {
 3         static void Main(string[] args)
 4         {                   
 5             BookShop book = new BookShop();
 6             //创建两个线程同时访问Sale方法
 7             Thread t1 = new Thread(new ThreadStart(book.Sale));
 8             Thread t2 = new Thread(new ThreadStart(book.Sale));
 9             //启动线程
10             t1.Start();
11             t2.Start();
12             Console.ReadKey();
13         }
14     }
15 
16    
17 
18     class BookShop
19     {
20         //剩余图书数量
21         public int num = 1;
22         public void Sale()
23         {
24             int tmp = num;
25             if (tmp > 0)//判断是否有书，如果有就可以卖
26             {
27                 Thread.Sleep(1000);
28                 num -= 1;
29                 Console.WriteLine("售出一本图书，还剩余{0}本", num);
30             }
31             else
32             {
33                 Console.WriteLine("没有了");
34             }
35         }
36     }

 1 class Program
 2     {
 3         static void Main(string[] args)
 4         {                   
 5             BookShop book = new BookShop();
 6             //创建两个线程同时访问Sale方法
 7             Thread t1 = new Thread(new ThreadStart(book.Sale));
 8             Thread t2 = new Thread(new ThreadStart(book.Sale));
 9             //启动线程
10             t1.Start();
11             t2.Start();
12             Console.ReadKey();
13         }
14     }
15 
16    
17 
18     class BookShop
19     {
20         //剩余图书数量
21         public int num = 1;
22         public void Sale()
23         {
24             //使用lock关键字解决线程同步问题
25             lock (this)
26             {
27                 int tmp = num;
28                 if (tmp > 0)//判断是否有书，如果有就可以卖
29                 {
30                     Thread.Sleep(1000);
31                     num -= 1;
32                     Console.WriteLine("售出一本图书，还剩余{0}本", num);
33                 }
34                 else
35                 {
36                     Console.WriteLine("没有了");
37                 }
38             }
39         }
40     }

 1  private void btn_Test_Click(object sender, EventArgs e)
 2         {
 3             //创建一个线程去执行这个方法:创建的线程默认是前台线程
 4             Thread thread = new Thread(new ThreadStart(Test));
 5             //Start方法标记这个线程就绪了，可以随时被执行，具体什么时候执行这个线程，由CPU决定
 6             //将线程设置为后台线程
 7             thread.IsBackground = true;
 8             thread.Start();
 9         }
10 
11         private void Test()
12         {
13             for (int i = 0; i < 10000; i++)
14             {               
15                 this.textBox1.Text = i.ToString();
16             }
17         }

//取消跨线程的访问
Control.CheckForIllegalCrossThreadCalls = false;