对C# .Net4.5异步机制测试（二）——加深印象

        public static void Main()
        {
            Console.WriteLine(Thread.CurrentThread.ManagedThreadId);
            In();
            Console.WriteLine("run after in");
            Console.Read();
        }

        public static async void In()
        {
            var name=Name();
            Console.WriteLine(Thread.CurrentThread.ManagedThreadId);
            Console.WriteLine("{0} run in {1}",Thread.CurrentThread.ManagedThreadId, await name );
            Console.WriteLine(Thread.CurrentThread.ManagedThreadId);

        }

        public static async Task<string> Name()
        {
            var res = Task.Run(() => {
                Thread.Sleep(10000);
                Console.WriteLine("Child is {0}",Thread.CurrentThread.ManagedThreadId);
                return "jacket";
            });
            return await res;
        }

运行结果：

1
1
run after in //整个顺序是Main->In->Name,然后在Name返回处直接跳出，执行var name=Name();下面代码，执行下去后遇到await name再次跳出，执行In()下方代码其他代码由Task线程执行。首先await的使用是最外层一定要套一个async函数，个人认为保证了不会跳出Main（）函数。
Child is 3
1 run in jacket //Console.WriteLine("{0} run in {1}",await name，Thread.CurrentThread.ManagedThreadId);的执行结果是jacket run in 1.说明同一语句都能拆分到不同线程里执行啊
3