大约有 41,731 项符合查询结果（耗时：0.0554秒） [XML]
What does enumerate() mean?
What does for row_number, row in enumerate(cursor): do in Python?
5 Answers
5
...
Difference between TCP and UDP?
What is the difference between TCP and UDP?
12 Answers
12
...
Query-string encoding of a Javascript Object
Do you know a fast and simple way to encode a Javascript Object into a string that I can pass via a GET Request?
40 Ans...
Differences in boolean operators: & vs && and | vs ||
I know the rules for && and || but what are & and | ? Please explain these to me with an example.
11 Ans...
Why is there no Char.Empty like String.Empty?
Is there a reason for this? I am asking because if you needed to use lots of empty chars then you get into the same situation as you would when you use lots of empty strings.
...
When to use MongoDB or other document oriented database systems? [closed]
We offer a platform for video- and audio-clips, photos and vector-grafics. We started with MySQL as the database backend and recently included MongoDB for storing all meta-information of the files, because MongoDB better fits the requirements. For example: photos may have Exif information, video...
What is the purpose of setting a key in data.table?
I am using data.table and there are many functions which require me to set a key (e.g. X[Y] ). As such, I wish to understand what a key does in order to properly set keys in my data tables.
...
What goes into your .gitignore if you're using CocoaPods?
I've been doing iOS development for a couple of months now and just learned of the promising CocoaPods library for dependency management.
...
Correct format specifier for double in printf
What is the correct format specifier for double in printf? Is it %f or is it %lf ? I believe it's %f , but I am not sure.
...
Is it alright to use target=“_blank” in HTML5?
I recall reading somewhere that in HTML5 it was no longer okay to use target="_blank" in HTML5, but I can't find it now.
...