大约有 12,000 项符合查询结果（耗时：0.0267秒） [XML]
How to replace (or strip) an extension from a filename in Python?
...fail when you have multiple file extensions. For example, pth = Path('data/foo.tar.gz'); print(pth.with_suffix('.jpg')) will output 'data/foo.tar.jpg'. I suppose you can do pth.with_suffix('').with_suffix('.jpg'), but it's clunky, and you would need to add an arbitrarily long chain of .with_suffix('...
How can I split and parse a string in Python?
...t a string on space, get a list, show its type, print it out:
el@apollo:~/foo$ python
>>> mystring = "What does the fox say?"
>>> mylist = mystring.split(" ")
>>> print type(mylist)
<type 'list'>
>>> print mylist
['What', 'does', 'the', 'fox', 'say?']
...
Parallelize Bash script with maximum number of processes
... the output of my_script to be put next to the files in basename.out (e.g. foo.jpeg -> foo.out). We want to run my_script once for each core the computer has and we want to run it on the local computer, too. For the remote computers we want the file to be processed transferred to the given comput...
How to return a part of an array in Ruby?
...
You can use slice() for this:
>> foo = [1,2,3,4,5,6]
=> [1, 2, 3, 4, 5, 6]
>> bar = [10,20,30,40,50,60]
=> [10, 20, 30, 40, 50, 60]
>> half = foo.length / 2
=> 3
>> foobar = foo.slice(0, half) + bar.slice(half, foo.length)
=> [1...
Removing the fragment identifier from AngularJS urls (# symbol)
...esult in a page not found error, irrespective of html5mode:
$ curl http://foo.bar/phones
although the following will return the root/home page:
$ curl http://foo.bar/#/phones
The reason for this is that anything after the hashtag is stripped off before the request arrives at the server. So a r...
How do I update my bare repo?
...
Assuming:
$ git clone --bare https://github.com/.../foo.git
Fetch with:
$ git --git-dir=foo.git fetch origin +refs/heads/*:refs/heads/* --prune
Note: --git-dir=foo.git is not required if you cd to the directory first.
...
Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...ary objects:
void CopyFileData(FileHandle source, FileHandle dest);
void Foo()
{
CopyFileData(FileHandle("C:\\source"), FileHandle("C:\\dest"));
}
There are three error cases to handled: no file can be opened, only one file can be opened, both files can be opened but copying the files failed...
When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
...eating a database and then querying it. You can't write:
CREATE DATABASE foo;
USE foo;
CREATE TABLE bar;
because foo does not exist for the batch which does the CREATE TABLE. You'd need to do this:
CREATE DATABASE foo;
GO
USE foo;
CREATE TABLE bar;
...
How do I convert a Ruby class name to a underscore-delimited symbol?
How can I programmatically turn a class name, FooBar , into a symbol, :foo_bar ? e.g. something like this, but that handles camel case properly?
...
How to secure MongoDB with username and password
...uthenticate as the user.
use some_db
db.auth("myNormalUser", "xyz123")
db.foo.insert({x:1})
use some_other_db
db.foo.find({})
Long answer: Read this if you want to properly understand.
It's really simple. I'll dumb the following down https://docs.mongodb.com/manual/tutorial/enable-authentication...