任务与等待MVC应用程序中的任务

Question

我很困惑何时会在方法中使用异步。根据我的测试，这两种方法的工作方式相同。你何时会使用其中一个？

        // Returns a task which can be awaited in the controller
        private Task<int> RunAsyncTask1()
        {
            Task<int> task = Task.Run(() =>
            {
                int result = CalculateMeaningOfLife();
                return result;
            });

            return task;
        }

        // Returns an actual value - it too, can be awaited in the controller
        private async Task<int> RunAsyncTask2()
        {
            var task = await Task.Run(() => {
                int result = CalculateMeaningOfLife();
                return result;
            });

            return task; 
        }

控制器：

    public async Task<ActionResult> Index()
    {
        Task<int> task = RunAsyncTask1(); // Without await - will continue and not wait for result 
        int result = await RunAsyncTask1(); // Main Thread put back in Thread Pool, will wait for result

        Task<int> task = RunAsyncTask2(); // Without await - will continue and not wait for result
        int result = await RunAsyncTask2(); // Main Thread put back in Thread Pool, will wait for result

        return View();
    }

在方法（RunAsyncTask2（））中使用“await”关键字WITHE的唯一好处是，您可以在该方法中设置多个延续吗？