大约有 43,000 项符合查询结果（耗时：0.0489秒） [XML]
How does strtok() split the string into tokens in C?
...
strtok will tokenize a string i.e. convert it into a series of substrings.
It does that by searching for delimiters that separate these tokens (or substrings). And you specify the delimiters. In your case, you want ' ' or ',' or '.' or '-' to be the delimiter...
Why implement interface explicitly?
...
If you implement two interfaces, both with the same method and different implementations, then you have to implement explicitly.
public interface IDoItFast
{
void Go();
}
public interface IDoItSlow
{
void Go();
}
public class JustDoIt : IDoItFast, IDoItSlow
{
void IDoItF...
CSV file written with Python has blank lines between each row
... in binary mode "wb" will not work in Python 3+. Or rather, you'd have to convert your data to binary before writing it. That's just a hassle.
Instead, you should keep it in text mode, but override the newline as empty. Like so:
with open('/pythonwork/thefile_subset11.csv', 'w', newline='') as ...
Java: Static vs inner class [duplicate]
What is the difference between static and non-static nested class?
8 Answers
8
...
How to get the current time as datetime
...components.minute
See the same question in objective-c How do I get hour and minutes from NSDate?
Compared to Nate’s answer, you’ll get numbers with this one, not strings… pick your choice!
share
|
...
Python: How to get stdout after running os.system? [duplicate]
... didn't. I'm using ubuntu and this command: out = os.system('ffmpeg -i ' + converted_filename + ' -ss ' + str(thumbnail_frame_time) + ' -vf scale=254:152 -vframes 1 -vcodec png -an -y ' + file_name + '.png')
– Edhowler
Mar 4 at 18:59...
How do I clone a single branch in Git?
...ore useful than it makes out?".
"Undoing" a shallow clone is detailed at "Convert shallow clone to full clone" (git 1.8.3+)
# unshallow the current branch
git fetch --unshallow
# for getting back all the branches (see Peter Cordes' comment)
git config remote.origin.fetch refs/heads/*:refs/remotes/...
How to set auto increment primary key in PostgreSQL?
I have a table in PostgreSQL with 22 columns, and I want to add an auto increment primary key.
7 Answers
...
Creating a byte array from a stream
... streams, you just don't know how much data there will be. In such cases - and before .NET 4 - I'd use code like this:
public static byte[] ReadFully(Stream input)
{
byte[] buffer = new byte[16*1024];
using (MemoryStream ms = new MemoryStream())
{
int read;
while ((read ...
How to read/process command line arguments?
I am originally a C programmer. I have seen numerous tricks and "hacks" to read many different arguments.
17 Answers
...