Question

当我在命令窗口输入以下语句时，我一直在使用Matlab进行操作并输出相同的输出：

public class PocStateMachine : MassTransitStateMachine<PocSaga>
{
    public PocStateMachine()
    {
        InstanceState(x => x.CurrentState);

        Event(() => StartSaga);
        Event(() => LoopMessageEvent);

        Initially(
            When(StartSaga)
            .Then(context => {
                Trace.TraceInformation("[SAGA] StartSaga recebido, saga criada e mudandando estado para Active - {0}",context.Data.CorrelationId);
                Trace.TraceInformation("[SAGA] [StartSaga] -- {0} ---- {1}", context.Instance.CorrelationId, context.Data.CorrelationId);
            })
            .TransitionTo(Active),
            When(LoopMessageEvent)
            .Then(context =>
            {
                Trace.TraceInformation("[SAGA] - [Initially] LoopMessageEvent recebido - {0}", context.Data.CorrelationId);
            }).TransitionTo(Active)
            );
        WhenEnter(Active,
            x => x.Then(context => Trace.WriteLine("[SAGA] Entering Active State"))
            );
        WhenEnter(Processing,
            x => x.
            Then(context => Trace.WriteLine("[SAGA] Entering Processing"))
            );

        During(Active,
            When(LoopMessageEvent)
            .Then(context => Trace.TraceInformation("[SAGA] LoopScheduleMessage recebido, transicionando para Processing - {0}", context.Data.CorrelationId))
            .TransitionTo(Processing)
            );

        During(Processing,
            When(LoopMessageEvent)
            .Then(context => Trace.TraceInformation("[SAGA] During Processing - LoopMessageReceived, Finishing()", context.Data.CorrelationId))
            .Finalize()
            );

        SetCompletedWhenFinalized();
    }

    public State Active { get; private set; }
    public State Processing { get; private set; }


    public Event<StartPocSagaMessage> StartSaga { get; private set; }
    public Event<LoopMessage> LoopMessageEvent { get; private set; }

}

public class LoopMessage : CorrelatedBy<Guid>
{
    public LoopMessage(Guid jobId)
    {
        CorrelationId = jobId;
        JobId = jobId;
    }

    public Guid JobId { get; set; }
    public Guid CorrelationId { get; set; }

}

public class StartPocSagaMessage : CorrelatedBy<Guid>
{
    public StartPocSagaMessage(Guid jobId)
    {
        CorrelationId = jobId;
        JobId = jobId;
    }

    public Guid JobId { get; set; }
    public Guid CorrelationId { get; set; }
}

public interface IStartPocMessage
{
    Guid CorrelationId { get; set; }
}

public class PocSaga : SagaStateMachineInstance
{
    public Guid CorrelationId { get; set; }
    public State CurrentState { get; set; }
    public Guid? ExpirationId { get; set; }
}

我无法在文档页面上找到有关此内容的任何参考资料。

Answer 1

有two ways调用Matlab函数。

函数语法使用这样的括号，并且最通用，通过值传递参数：

[out1, out2] = funcname(arg1, arg2, arg3);

在命令语法中，没有括号，参数由空格分隔，参数假定为字符串（包含字符值的行向量）。

save mydata.mat x y z

您使用的命令语法不适合用作命令。因此，Matlab将一个字符串传递给floor或ceil，该函数强制参数转换为数字矩阵，然后函数不会进一步修改这些值，因为它们已经整数。

字符串'ans*ans'中字符的ASCII值是，猜猜是什么，[ 97, 110, 115, 42, 97, 110, 115 ]。

为什么要安排回答？＆＃39;和＆＃c; ceil ans * ans＆＃39; （没有赋给ans的任何值）给出矩阵输出？

1 个答案: