大约有 42,000 项符合查询结果(耗时:0.0382秒) [XML]
How to remove a key from a Python dictionary?
When deleting a key from a dictionary, I use:
13 Answers
13
...
Why should I not include cpp files and instead use a header?
So I finished my first C++ programming assignment and received my grade. But according to the grading, I lost marks for including cpp files instead of compiling and linking them . I'm not too clear on what that means.
...
What is the 'new' keyword in JavaScript?
The new keyword in JavaScript can be quite confusing when it is first encountered, as people tend to think that JavaScript is not an object-oriented programming language.
...
What are the differences between a clustered and a non-clustered index?
What are the differences between a clustered and a non-clustered index ?
12 Answers
...
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
Ive got a bunch of rectangular objects which I need to pack into the smallest space possible (the dimensions of this space should be powers of two).
...
Why are exclamation marks used in Ruby methods?
In Ruby some methods have a question mark ( ? ) that ask a question like include? that ask if the object in question is included, this then returns a true/false.
...
Difference between signed / unsigned char [duplicate]
So I know that the difference between a signed int and unsigned int is that a bit is used to signify if the number if positive or negative, but how does this apply to a char ? How can a character be positive or negative?
...
What is function overloading and overriding in php?
In PHP, what do you mean by function overloading and function overriding. and what is the difference between both of them? couldn't figure out what is the difference between them.
...
DateTime vs DateTimeOffset
Currently, we have a standard way of dealing with .NET DateTime 's in a TimeZone aware way: Whenever we produce a DateTime we do it in UTC (e.g. using DateTime.UtcNow ), and whenever we display one, we convert back from UTC to the user's local time.
...
How do I get the result of a command in a variable in windows?
I'm looking to get the result of a command as a variable in a Windows batch script (see how to get the result of a command in bash for the bash scripting equivalent). A solution that will work in a .bat file is preferred, but other common windows scripting solutions are also welcome.
...