examination | Yii2-basic 考试系统 | Web Framework library

This sounds like an easy task, but I already spent hours on it. There're several posts with a similar headline, so let me describe my problem first. I have H264 encoded video files, those files show records of a colonoscopy/gastroscopy.

During the examination, the exterminator can make some kind of screenshot. You can see this in the video because for round about one second the image is not moving, so a couple of frames show the "same". I'd like to know when those screenshots are made.

So in the first place I extracted the image of the video:

I have a question about OptaPlanner constraint stream API. Are the constraint matches only used to calculate the total score and are meant to help the user see how the score results, or is this information used to find a better solution?

With "used to find a better solution" I mean the information is used to get the next move(s) in the local search phase.

So does it matter which planning entity I penalize?

Currently, I am working on an examination scheduler. One requirement is to distribute the exams of a single student optimally. The number of exams per student varies. Therefore, I wrote a cost function that gives a normalized value, indicating how well the student's exams are distributed.

Let's say the examination schedule in the picture has costs of 80. Now, I need to break down this value to the individual exams. There are two different ways to do this:

• Option A: Penalize each of the exams with 10 (10*8 = 80).
• Option B: Penalize each exam according to its actual impact.=> Only the exams in the last week are penalized as the distribution of exams in week one and week two is fine.

Obviously, option B is semantically correct. But does the choice of the option affect the solving process?

In python, there is a common construction of the form if __name__ == "__main__": to detect whether the file was imported or executed directly. Usually, the only action taken in this conditional is to execute some "sensible, top level" function. This allows the same file to be used as a basic script and as a library module (and also as something an interactive user can import and use).

I was wondering if there is a clean and reliable way to do this in lua. I thought I could use the _REQUIREDNAME global variable, but it turns out that this was changed in Lua 5.1. Currently, the lua require passes arguments (in the variadic ...), so in principle, these can be examined. However, this is either not reliable, not clean, or probably both, because obviously when a script is executed arguments can be passed. So to do this safely, you would have to examine the arguments.

FWIW, require passes the module name as argument 1 (the string you called require on), and the path to the file it eventually found as argument 2. So there is a obviously some examination that can be done to try to detect this, which if not nearly as nice as if __name__ == "__main__": and can always be bypassed by a user by passing two suitably constructed arguments to the script. Not exactly a security threat, but I would hope there is a better solution.

I also experimented with another method, which I found very ugly but promising. This was to use debug.traceack(). If the script is executed directly, the traceback is very predictable, in fact, it only has 3 lines. I thought this might be it, although, like I said, an ugly hack for sure.

Do any more frequent lua users have advice? In effect, if I am writing module X, I want to either return X.main_func() in script mode or return X in import mode.

EDIT: I took out an item which was actually incorrect (and makes my traceback solution workable). Additionally, the link provided in the comment by Egor Skriptunoff did provide another trick from the debug library which is even cleaner than using the traceback. Other than that, it seems that everyone ran into the same issues as me and the lua team has been disinterested in providing an official means to support this.

I am using decorators on top of classes to register components. Here is my code

I have an sql table column of text datatype having xml value in it.When I tried to select,it is giving a blank value.could someone help me on this?

Table Structure

I am trying to implement authentication with Spring Boot.
When I run the application and try to login I realized, until that time, configure methods of WebSecurityConfigurerAdapter extending class never called. Also I cant see the behaviors of them during authentication or limiting url access. Despite googling & examination, I can't figure out what I have missed with standard implementation. Thanks in advance.

In 2016, ARM introduced the ARMv8-M architecture as an upgrade to the popular ARMv6-M (Cortex M0/M0+/M1) and ARMv7-M (Cortex M3/M4/M7) architectures. The ARMv8-M architecture is again split into a Baseline profile seen as a continuation of the ARMv6-M architecture and a Mainline profile seen as a continuation of the ARMv7-M architecture.

Cursory examination of the ARMv8-M Architecture Reference Manual unfortunately yields no insights into what exactly was added and there doesn't seem to be a useful summary of what changed in comparison to the previous version of the architecture. And as usual for new versions of CPU architectures, it appears that almost all details are unchanged with only small additions here and there.

What additional instructions and instruction variants does ARMv8-M Baseline provide over ARMv6-M?

I have a program using C# / WPF and SQL Server with EF Core 5. Sometimes I use eager loading, for example:

I am trying to create an object after deserialization however I do not want to serialize that object. Here is an example: