大约有 7,000 项符合查询结果（耗时：0.0150秒） [XML]
What's the difference between the 'ref' and 'out' keywords?
...et myval=somenewval, the effect is only in that function scope. The ref keyword would allow you to change myval to point to somenewval.
– JasonTrue
Apr 14 '10 at 23:21
...
Why does comparing strings using either '==' or 'is' sometimes produce a different result?
...t;> a is b
False
so, no wonder they're not the same, right?
In other words: is is the id(a) == id(b)
share
|
improve this answer
|
follow
|
...
“std::endl” vs “\n”
...
@BenVoigt: I was careful with my wording above (so I am happy with them). It is not as performant as stdio (because it does more). BUT a lot of the performance gap people complain about is cause by sync with stdio.
– Martin York
...
Architecture of a single-page JavaScript web application?
...
Question - What makes an application complex ?
Answer - The use of word 'complex' in the question itself. Hence, a common tendency will be to look out for a complex solution right from the beginning.
Question - What does the word complex means ?
Answer - Anything that is unknown or par...
What is “String args[]”? parameter in main method Java
...e supplied command-line arguments as an array of String objects.
In other words, if you run your program as java MyProgram one two then args will contain ["one", "two"].
If you wanted to output the contents of args, you can just loop through them like this...
public class ArgumentExample {
pu...
How to insert an element after another element in JavaScript without using a library?
...
In other words, it's attempting to solve a problem that doesn't exist. There's nothing inherently wrong about the extra check, but I suppose it's not propagating the best understanding of these methods
– 1j01
...
Iterate over a list of files with spaces
...
You could replace the word-based iteration with a line-based one:
find . -iname "foo*" | while read f
do
# ... loop body
done
share
|
impro...
How can I create a link to a local file on a locally-run web page?
... internet. These files will not open in your default file handler (e.g. MS Word or VLC Media Player), and you will not be able to do anything like ask File Explorer to open the file's location.
This is an extremely good thing for your security.
Sites in your browser cannot interact with your opera...
What's the difference between a method and a function?
...
'method' is the object-oriented word for 'function'. That's pretty much all there is to it (ie., no real difference).
Unfortunately, I think a lot of the answers here are perpetuating or advancing the idea that there's some complex, meaningful difference....
What are the uses of the exec command in shell scripts? [closed]
...ple is equivalent to exec >/var/log/userdata.log 2>&1. In other words it redirects stdout and stderr to that file. Commands that follow will inherit those redirections unless they are reset, but they will be executed.
– cdarke
Feb 28 '19 at 22:37
...