IdGenerator | 💎多语言实现，高性能生成唯一数字ID。 💎优化的雪花算法（SnowFlake）——雪花漂移算法，在缩短ID长度的同时，具备极高瞬时并发处理能力（50W/0.1s）。 💎原生支持 C#/Java/ | SQL Database library

keep the variable outside the class in your imagepick widget

"The web page will not work, and there will be no errors"

This will not work because of your this line of code: while (await timer.WaitForNextTickAsync()) its will be working like a infinite loop and keep continue looping and eventually your HTML and Javascipt will not be executed as expected.

"how can I debug my code?"

For C# code you can debug like the way we debug normally C# code as you can see the picture below:

Note:

If you get rid of your code while (await timer.WaitForNextTickAsync()) then it will work like below:

Another problem I got from your Javascript code that is, you are calling fakeData() and changePos() function on setInterval but you are passting the function like this setInterval(fakeData,2000) I think it whould like setInterval(fakeData(),2000) instead.

Hope it would help you to debug your code accordingly.

The objc_sync_enter/objc_sync_exit functions take an object instance and use its identity (i.e., address in memory) in order to allocate and associate a lock in memory — and use that lock to protect the code between the enter and exit calls.

However, structs are not objects, and don't have reference semantics which would allow them to be used in this way — they're not even guaranteed to be allocated in a stable location in memory. However, to support interoperation with Objective-C, structs must have a consistent object-like representation when used from Objective-C, or else calling Objective-C code with, say, a struct inside of an Any instance could trigger undefined behavior.

When a struct is passed to Objective-C in the guise of an object (e.g., inside of Any, or AnyObject), it is wrapped up in a temporary object of a private class type called __SwiftValue. This allows it to look like an object to Objective-C, and in some cases, be used like an object, but critically, it is not a long-lived, stable object.

You can see this with the following code:

You have a lot going on here, so without re-writing everything myself, I would suggest you embrace OOD and re-work your classes a bit. You already have a Student class. You should also had a Course class that contains a Map of students with their scores. You can then remove the various point fields from your student class. I'd also keep a CourseRepository class.

Course's have Students, Students don't have Courses.

Then your logic would go something like:

1. Get Course from CourseRepository using the courseName
2. Get Get the list of Students and their scores from the Course
3. Sort the list
4. Output the list

There is no option to set the generated identifier strategy on make entity. You can see all available option using php bin/console make:entity -h

Also there are no configuration in doctrine.yaml file to define this.

It could be a good feature to add for current and next version

To request a new feature, you can create a new issue feature request type: https://github.com/symfony/symfony/issues/new/choose You will need a github account

You can use Type Assertions to cast your input parameter to whatever you want it to be, e.g.:

I guess that you should correct this:

For now, stick with version 0.1.0 of Oracle R2DBC when programming with Spring Data.

The newer versions of Oracle R2DBC implement version 0.9.0.M1 of the R2DBC SPI, which is not currently supported by Spring Data. This was confirmed in a GitHub discussion: https://github.com/oracle/oracle-r2dbc/issues/30#issuecomment-862989986

Once I rolled back to version 0.1.0 of Oracle R2DBC, I was able to get the demo application working. I had to refactor OracleR2dbcConfig.java because support for Oracle Net Descriptors wasn't added until after 0.1.0. A plain URL will work fine to configure a host, port, and service name:

This is how I solved this problem; First of all, instead of getting a List from json, I try to get a int[] instead, use that and convert to list