大约有 45,000 项符合查询结果（耗时：0.0504秒） [XML]
PHP script - detect whether running under linux or Windows?
...t that may be placed on a windows system or a linux system. I need to run different commands in either case.
14 Answers
...
Installing pip packages to $HOME folder
...to $HOME/Library/Python. This might change in a future release. But, for now, on 2.7 (and 3.2, if hg were supported on Python 3), the above locations will be $HOME/Library/Python/x.y/bin/hg and $HOME/Library/Python/x.y/lib/python/site-packages.
...
select count(*) from table of mysql in php
... removed entirely in 7. Let's make it easier to upgrade and start using it now.
$dbh = new \PDO($dsn, $user, $password);
$sth = $dbh->prepare('SELECT count(*) as total from Students');
$sth->execute();
print_r($sth->fetchAll());
...
How to make a Java Generic method static?
...his mean:
In my answer <E> would hide the E from ArrayUtils<E> if the method wouldn't be static. AND <E> has nothing to do with the E from ArrayUtils<E>.
To reflect this fact better, a more correct answer would be:
public static <I> I[] appendToArray(I[] array, I item...
Modifying the “Path to executable” of a windows service
I'd like to modify the path to my application, but doing so breaks it because the service still points to the old location.
...
Difference between JSON.stringify and JSON.parse
...pt object into JSON text and stores that JSON text in a string, eg:
var my_object = { key_1: "some text", key_2: true, key_3: 5 };
var object_as_string = JSON.stringify(my_object);
// "{"key_1":"some text","key_2":true,"key_3":5}"
typeof(object_as_string);
// "string"
JSON.parse turns a...
Generating Guids in Ruby
...reRandom.uuid generates a random UUID, so it is not guaranteed as unique. If you just want a random string that is probably unique it will be okay to use this. However, if you want something that is guaranteed to be unique you will need to use something that includes the MAC address, timestamp, an...
What is the purpose of “return await” in C#?
...case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task<SomeResult> DoSomethingAsync()
{
using (var foo = new Foo())
{
...
What are all the user accounts for IIS/ASP.NET and how do they differ?
... of the impersonated account).
In IIS7.x/ASP.NET impersonation control is now configured via the Authentication configuration feature of a site. So you can configure to run as the pool identity, IUSR or a specific custom anonymous account.
LOCAL SERVICE:
The LOCAL SERVICE account is a built-in ac...
Bash function to find newest file matching pattern
...s when the filenames can contain funny characters like spaces or newlines. If you can guarantee that the filenames will not contain funny characters then parsing ls is quite safe.
If you are developing a script which is meant to be run by many people on many systems in many different situations the...