bool b = true;
            int i=0, j=0;
            string Song = "";
            string Download = "";
            Thread Thread1=new Thread(() =>
            {
                while (b)
                {
                    Song="一百万个可能";
                    i++;
                    
                }
            })
            {
                Name = "Thread1",
                Priority = ThreadPriority.Highest
            };
             Thread Thread2=new Thread(() =>
            {
                while (b)
                {
                    Download = "小说三体";
                    j++;
                }
            })
            {
                Name = "Thread2",
                Priority = ThreadPriority.Lowest
            };
            Thread1.Start();
            Thread2.Start();
            Thread.Sleep(1000);
            b = false;
            Console.WriteLine("Song: {0}, Download: {1}", Song, Download);
            Console.WriteLine("歌曲的优先级：{0}",i);
            Console.WriteLine("下载的优先级：{0}",j);
            Console.ReadLine();