大约有 42,000 项符合查询结果（耗时：0.0459秒） [XML]
For i = 0, why is (i += i++) equal to 0?
...ification):
int i = 0;
i = i + i; // i=0 because the ++ is a postfix operator and hasn't been executed
i + 1; // Note that you are discarding the calculation result
What actually happens is more involved than that - take a look at MSDN, 7.5.9 Postfix increment and decrement operators:
The run...
How to convert TimeStamp to Date in Java?
How do I convert 'timeStamp' to date after I get the count in java?
16 Answers
16
...
xUnit.net: Global setup + teardown?
...have a global initialization/teardown extension point. However, it is easy to create one. Just create a base test class that implements IDisposable and do your initialization in the constructor and your teardown in the IDisposable.Dispose method. This would look like this:
public abstract class Tes...
gunicorn autoreload on source change
Finally I migrated my development env from runserver to gunicorn/nginx.
4 Answers
4
...
How can I upload fresh code at github?
I have a directory with all my coding projects.
7 Answers
7
...
Why does integer division in C# return an integer and not a float?
...
While it is common for new programmer to make this mistake of performing integer division when they actually meant to use floating point division, in actual practice integer division is a very common operation. If you are assuming that people rarely use it, and ...
Maximum size of a element
I'm working with a canvas element with a height of 600 to 1000 pixels and a width of several tens or hundreds of thousands of pixels. However, after a certain number of pixels (obviously unknown), the canvas no longer display shapes I draw with JS.
...
How to implement WiX installer upgrade?
...rUpgrade element instead of using your own.
For example, we use this code to do automatic upgrades. It prevents downgrades, giving a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngra...
Is there a command to refresh environment variables from the command prompt in Windows?
If I modify or add an environment variable I have to restart the command prompt. Is there a command I could execute that would do this without restarting CMD?
...
How to use the CancellationToken property?
Compared to the preceding code for class RulyCanceler , I wanted to run code using CancellationTokenSource .
5 Answers
...