大约有 16,000 项符合查询结果（耗时：0.0263秒） [XML]
Java: Clear the console
....exec, as the well-known command cls is builtin to Windows’ command line interpreter.
When launching a new process via Runtime.exec, the standard output gets redirected to a pipe which the initiating Java process can read. But when the output of the cls command gets redirected, it doesn’t clear ...
How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
... I consider it a good habit to declare as final all variables that are not intended to be reassigned. I only wish "final" were the default.
– Eric Stein
Apr 19 '17 at 14:27
ad...
How to run a shell script on a Unix console or Mac terminal?
...ans we have no space left to pass arguments to bash. So there's no way to convert something like #!/bin/bash -exu to this scheme. You'll have to put set -exu after the hashbang instead.
This approach also has another advantage: Some systems may ship with a /bin/bash, but the user may not like it,...
How to trigger a phone call when clicking a link in a web page on mobile phone
...Safari browser will automatically detect a phone number on a page and will convert the text into a call link without using any of the code on this page.
WTAI smartphone link code:
The WTAI or "Wireless Telephony Application Interface" link code is shown below. This code is considered to be the corr...
Python dictionary: Get list of values for list of keys
...
Converting the OP's list to a set at least makes it linear, but it's still linear on the wrong data structure as well as losing order. Consider the case of a 10k dictionary and 2 keys in mykeys. Your solution makes 10k set ...
How is __eq__ handled in Python and in what order?
... A.__eq__, since it exists. Its code includes self.value == other. Since int's don't know how to compare themselves to B's, Python tries invoking B.__eq__ to see if it knows how to compare itself to an int.
If you amend your code to show what values are being compared:
class A(object):
def _...
How do I delete from multiple tables using INNER JOIN in SQL server
...le. Something like:
begin transaction;
declare @deletedIds table ( id int );
delete from t1
output deleted.id into @deletedIds
from table1 as t1
inner join table2 as t2
on t2.id = t1.id
inner join table3 as t3
on t3.id = t2.id;
delete from t2
from table2 as ...
Temporarily disable auto_now / auto_now_add
...ject.com/en/1.9/topics/db/queries/… Be aware that the update() method is converted directly to an SQL statement. It is a bulk operation for direct updates. It doesn’t run any save() methods on your models, or emit the pre_save or post_save signals (which are a consequence of calling save()), or ...
What is the fastest way to create a checksum for large files in C#
.... The sync will be done manually every few weeks. I cant take the filename into consideration because they can change anytime.
...
Is it possible to style a select box? [closed]
...
I've seen some jQuery plugins out there that convert <select>'s to <ol>'s and <option>'s to <li>'s, so that you can style it with CSS. Couldn't be too hard to roll your own.
Here's one: https://gist.github.com/1139558 (Used to he here, but it lo...