大约有 15,000 项符合查询结果（耗时：0.0382秒） [XML]
How to generate random number in Bash?
...
Just for context, the basic pigeonholing for % 10 means 8 and 9 are about .03% less likely to occur than 0–7. If your shell script requires more accurate uniform random numbers than that, then by all means use a more complex and proper m...
Method Overloading for null argument
...on is more specific than the Object-version. So if only those two methods exist, the char[] version will be chosen.
When both the char[] and Integer versions are available, then both of them are more specific than Object but none is more specific than the other, so Java can't decide which one to ca...
How to read a text file into a list or an array with Python
I am trying to read the lines of a text file into a list or array in python. I just need to be able to individually access any item in the list or array after it is created.
...
Disabling contextual LOB creation as createClob() method threw error
I am using Hibernate 3.5.6 with Oracle 10g. I am seeing the below exception during initialization but the application itself is working fine. What is the cause for this exception? and how it can be corrected?
...
qmake: could not find a Qt installation of ''
...
I got to this SO answer, then found, based on the next error (no qtwebkit installation found) that I also had to run apt-get install qt5-default libqt5webkit5-dev gstreamer1.0-plugins-base gstreamer1.0-tools gstreamer1.0-x as described on the Thoughtbot Github wiki page
...
Remove carriage return in Unix
...the simplest way to remove all the carriage returns \r from a file in Unix?
20 Answers
...
Showing the same file in both columns of a Sublime Text window
When I have 2 columns set in a Sublime Text window, can I display the same file in both columns?
9 Answers
...
How to read a file without newlines?
...
This assumption is true in most cases (especially for files created by text editors, which often do add an ending newline anyway).
If you want to avoid this you can add a newline at the end of file:
with open(the_file, 'r+') as f:
f.seek(-1, 2) # go at the end of the file
if f.read(1) !...
How to load db:seed data into test database automatically?
...eed rake task primarily just loads the db/seeds.rb script. Therefore just execute that file to load the data.
load "#{Rails.root}/db/seeds.rb"
# or
Rails.application.load_seed
Where to place that depends on what testing framework you are using and whether you want it to be loaded before every t...
Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers
...
You need to specify data, index and columns to DataFrame constructor, as in:
>>> pd.DataFrame(data=data[1:,1:], # values
... index=data[1:,0], # 1st column as index
... columns=data[0,1:]) # 1st row as the column...