C#中的异步多线程8 Task.Yield

    static class DoStuff
    {
        public static async Task<int> FindSeriesSum(int i1)
        {
            int sum = 0;
            for(int i=0;i<i1;i++)
            {
                sum += i;
                if (i % 1000 == 0)
                    await Task.Yield();//每执行1000次就会移交一次控制器到调用方法
            }
            return sum;
        }
    }
    class Program
    {
        
        static void Main(string[] args)
        {
            Task<int> value = DoStuff.FindSeriesSum(1000000);
            CountBig(100000);
            CountBig(100000);
            CountBig(100000);
            CountBig(100000);
            Console.WriteLine("Sum:{0}", value.Result);
            Console.ReadLine();
        }
        private static void CountBig(int p)
        {
            for (int i = 0; i < p; i++) ;
        }
    }