让Matlab继续而不等待结果 [英] Let Matlab continue without waiting for a result

问题描述

我有以下问题:如何告诉Matlab它不应该等待函数的结果?除了线程，还有其他方法吗?

I have the following question: How do I tell Matlab that it should not wait for the results of a function? Is there a way other than threads?

我的问题:我有一个函数A，它每隔几秒钟就会被计时器调用一次.如果遇到特定事件，则在函数A内调用另一个函数B.函数B打开一个批处理文件. 我希望功能A继续运行而不必等待功能B结束.有没有办法轻松做到这一点?

My problem: I have a function A that is called by a Timer every few seconds. If a specific event is met, another function B is called inside function A. Function B opens a Batch File. I want function A to go on without waiting for function B to end. Is there a way to easily do it?

很抱歉，如果已经提出此问题，但找不到满意的答案.也请原谅我的英语不好.

I'm sorry if this question was already asked, but I couldn't find a satisfying answer. Please also excuse my bad english.

我要感谢所有回答的人.

I would like to thank everyone who answers for their help.

推荐答案

在函数B中，只需在行末使用&调用批处理文件.

In your function B, just call the batch file with a & at the end of the line.

例如:

!mybatch.bat &

这将在后台模式下运行文件mybatch.bat，并在调用后立即将执行返回给Matlab.

This will run the file mybatch.bat in background mode and will return execution to Matlab immediately after the call.

，或者如果您喜欢完整的表格，则:

or if you prefer the complete form:

[status, result] = system('mybatch.bat &')

但是在这种情况下它是没有用的，因为在后台系统调用mybatch，所以result变量始终为空，而status始终为0(是否已找到文件mybatch.bat并执行与否)

But in this case it is a bit useless, since the system call mybatch in the background, the result variable is always empty and status is always 0 (whether a file mybatch.bat was found and executed or not)

edit:如果只是批处理文件执行使您的程序变慢，这是一个快速的技巧.

edit: That is the quick trick in case it is only the batch file execution which is slowing down your program.

如果在函数B中有更多的matlab指令，并且确实需要在不等待的情况下继续运行函数A，则必须使用函数B设置侦听器对象作为回调.然后在您的函数A中触发事件(这将激活侦听器并调用函数B).

If you have more matlab instructions in function B and you really need function A to go on without waiting, you will have to set up a listener object with function B as a callback. Then in your function A, trigger the event (which will activate the listener and call function B).

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