想单独整一个类库 调用方法后实时返回结果

A调用B B一直返回值给A

@超级驼鹿: 你是A调用B，A一直返回结果给B吧
new TestA().Test();

    public class TestB
    {
        public TestB()
        {
            TestA.EventMessage += (s) =>
            {
                Console.WriteLine($"{DateTime.Now.ToString()}: {s}");
            };
        }
        public string Proc(string str)
        {
            return str;
        }
    }
    public class TestA
    {
        public static event Action<string> EventMessage;

        public void Test()
        {
            var test = new TestB();
            for (int i = 0; i < 10; i++)
            {
                var str = test.Proc(i + "");
                EventMessage?.Invoke(str);
                System.Threading.Thread.Sleep(1000);
            }
        }
    }

@浴子风: 谢谢谢谢 b一直返回给a