大约有 16,000 项符合查询结果（耗时：0.0354秒） [XML]
How do I replace multiple spaces with a single space in C#?
... @Shiva, /\s\s+/ is a standard POSIX regex statement and may be converted/used in any language using own syntax
– radistao
Apr 29 '14 at 6:45
4
...
Does Swift support reflection?
...th it :) here i've hacked out a little model serializer using it. Paste it into the Playground and have fun: gist.github.com/mchambers/67640d9c3e2bcffbb1e2
– Marc Chambers
Jun 25 '14 at 7:51
...
Get names of all keys in the collection
...ation with the new $objectToArray aggregation operator in version 3.4.4 to convert all top key-value pairs into document arrays, followed by $unwind and $group with $addToSet to get distinct keys across the entire collection. (Use $$ROOT for referencing the top level document.)
db.things.aggregate([...
How do I concatenate two text files in PowerShell?
...t would be
type file1.txt file2.txt file3.txt > files.txt
PowerShell converts the type command to Get-Content, which means you will get an error when using the type command in PowerShell because the Get-Content command requires a comma separating the files. The same command in PowerShell would...
Operational Transformation library?
...-MobWrite - Real-time Synchronization and Collaboration Service: "MobWrite converts forms and web applications into collaborative environments. Create a simple single-user system, add one line of JavaScript, and instantly get a collaborative system." (Uses Google-Diff-Match-Patch.)
...
Avoid passing null as the view root (need to resolve layout parameters on the inflated layout's root
...
Instead of doing
convertView = infalInflater.inflate(R.layout.list_item, null);
do
convertView = infalInflater.inflate(R.layout.list_item, parent, false);
It will inflate it with the given parent, but won't attach it to the parent.
...
Differences between fork and exec
...eplace the entire current process with a new program. It loads the program into the current process space and runs it from the entry point.
So, fork and exec are often used in sequence to get a new program running as a child of a current process. Shells typically do this whenever you try to run a p...
Case-insensitive search
...
Sorry how can you convert "best" into a variable in your first example? string.match(/best/i);
– Doug Molineux
Oct 23 '15 at 16:00
...
Using braces with dynamic variable names in PHP
...
Tom if you have existing array you can convert that array to object and use it like this:
$r = (object) $MyQueryResult;
echo $r->key;
share
|
improve this an...
What is polymorphism, what is it for, and how is it used?
...orm.
So polymorphism is the ability (in programming) to present the same interface for differing underlying forms (data types).
For example, in many languages, integers and floats are implicitly polymorphic since you can add, subtract, multiply and so on, irrespective of the fact that the types a...