死鎖

代碼如下

 

 

        class Program
        {
                static object a = new object();
                static object b = new object();

                static void Main(string[] args)
                {
                        var t = new Thread(f);
                        t.IsBackground = false;
                        var t2 = new Thread(f2);
                        t2.IsBackground = false;
                        t.Start();
                        t2.Start();
                }

                static void f()
                {
                        lock (a)
                        {
                                Thread.Sleep(5000);
                                lock (b)
                                {
                                        Console.WriteLine(1);
                                }
                        }
                }

                static void f2()
                {
                        lock (b)
                        {
                                lock (a)
                                {
                                        Console.WriteLine(2);
                                }
                        }
                }
        }

 

特徵：

兩個工作單元，兩份資源

都想要多方所有的

 

等吧。。。