大约有 46,000 项符合查询结果（耗时：0.0645秒） [XML]
Is there a faster/shorter way to initialize variables in a Rust struct?
In the following example, I would much prefer to assign a value to each field in the struct in the declaration of the fields. Alternatively, it effectively takes one additional statement for each field to assign a value to the fields. All I want to be able to do is to assign default values when the ...
How to show SQL queries run in the Rails console?
When I run queries (e.g. MyModel.where(...) or record.associated_things ) in the console, how can I see the actual database queries being run so I can gain more understanding of what is happening?
...
Why is reading lines from stdin much slower in C++ than Python?
I wanted to compare reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm mis...
How do I pass parameters to a jar file at the time of execution?
How do I pass parameters to a JAR file at the time of execution?
5 Answers
5
...
Do Git tags only apply to the current branch?
I'm currently working with a repository that has multiple branches.
7 Answers
7
...
What's the difference between HEAD^ and HEAD~ in Git?
When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~ .
15 Answers
...
Django - iterate number in for loop of a template
I have the following for loop in my django template displaying days. I wonder, whether it's possible to iterate a number (in the below case i) in a loop. Or do I have to store it in the database and then query it in form of days.day_number?
...
Can C++ code be valid in both C++03 and C++11 but do different things?
Is it possible for C++ code to conform to both the C++03 standard and the C++11 standard, but do different things depending on under which standard it is being compiled?
...
How to print a list of symbols exported from a dynamic library
So I've been trying to get dynamic libraries to work in my XCode project under Mac OS X. So far no joy.
4 Answers
...
Best explanation for languages without null
Every so often when programmers are complaining about null errors/exceptions someone asks what we do without null.
11 Answe...