大约有 45,000 项符合查询结果（耗时：0.0445秒） [XML]
Difference between Static and final?
...et's look at static variables and static methods first.
Static variable
It is a variable which belongs to the class and not to object (instance).
Static variables are initialized only once, at the start of the execution. These variables will be initialized first, before the initialization of any...
Why are Standard iterator ranges [begin, end) instead of [begin, end]?
...in, end) convention pays off time and again when you have any sort of algorithm that deals with multiple nested or iterated calls to range-based constructions, which chain naturally. By contrast, using a doubly-closed range would incur off-by-ones and extremely unpleasant and noisy code. For example...
Why is it bad style to `rescue Exception => e` in Ruby?
Ryan Davis’s Ruby QuickRef says (without explanation):
6 Answers
6
...
What should every developer know about databases? [closed]
Whether we like it or not, many if not most of us developers either regularly work with databases or may have to work with one someday. And considering the amount of misuse and abuse in the wild, and the volume of database-related questions that come up every day, it's fair to say that there are ce...
Delete directory with files in it?
I wonder, what's the easiest way to delete a directory with all its files in it?
33 Answers
...
Is it possible to start a shell session in a running container (without ssh)
...
EDIT: Now you can use docker exec -it "id of running container" bash (doc)
Previously, the answer to this question was:
If you really must and you are in a debug environment, you can do this: sudo lxc-attach -n <ID>
Not...
How to “return an object” in C++?
I know the title sounds familiar as there are many similar questions, but I'm asking for a different aspect of the problem (I know the difference between having things on the stack and putting them on the heap).
...
Python 3 turn range to a list
I'm trying to make a list with numbers 1-1000 in it. Obviously this would be annoying to write/read, so I'm attempting to make a list with a range in it. In Python 2 it seems that:
...
Where do alpha testers download Google Play Android apps?
I have developed my app and have published it through Google Play for alpha testing. As one of the testers I get an opt-in link, where I signed in as a tester. After that I was hoping to download the app directly with my phone by going to the Play Store on my phone. But as it seems to turn out, I ha...
Random data in Unit Tests?
I have a coworker who writes unit tests for objects which fill their fields with random data. His reason is that it gives a wider range of testing, since it will test a lot of different values, whereas a normal test only uses a single static value.
...