大约有 15,000 项符合查询结果（耗时：0.0309秒） [XML]
What is the difference between ports 465 and 587?
...ng out email using SMTP protocol.
Port 465 is for smtps
SSL encryption is started automatically before any SMTP level communication.
Port 587 is for msa
It is almost like standard SMTP port.
MSA should accept email after authentication (e.g. after SMTP AUTH). It helps to stop outgoing spam when ne...
Socket.IO Authentication
...ave to our own socket.io handler file (explained
// just after this).
// Start server. This will start both socket.io and our optional
// AJAX API in the given port.
const port = 3000; // Move this onto an environment variable,
// it'll look more professional.
server.listen(po...
How to combine two or more querysets in a Django view?
...ng querysets from the same model, or for similar fields from a few models, Starting with Django 1.11 a QuerySet.union() method is also available:
union()
union(*other_qs, all=False)
New in Django 1.11. Uses SQL’s UNION operator to combine the results of two or more QuerySets. For exampl...
Problems with Android Fragment back stack
...on.remove(frag2).add(frag3) // frag3 on view
(here all misleading stuff starts to happen)
Remember that .addToBackStack() is saving only transaction not the fragment as itself! So now we have frag3 on the layout:
< press back button >
// System pops the back stack and find the following s...
Worst security hole you've seen? [closed]
...
The old IBM System 36 dumb terminals had a keyboard combination that started the recording of a macro. So when a terminal was not logged in, you could start the recording of a macro and leave it in that position. Next time someone logged in, the keystrokes would be recorded in the macro and th...
return query based on date
... dates
You can create two dates off of the first one like this, to get the start of the day, and the end of the day.
var startDate = new Date(); // this is the starting date that looks like ISODate("2014-10-03T04:00:00.188Z")
startDate.setSeconds(0);
startDate.setHours(0);
startDate.setMinutes(0);
...
Why should I care that Java doesn't have reified generics?
...sa bit like Collections.checkedList but can be seeded with a collection to start with.
– oxbow_lakes
Dec 18 '09 at 12:39
...
How to create a trie in Python
...cumbersome -- or at least space inefficient. But since you're just getting started, I think that's the easiest approach; you could code up a simple trie in just a few lines. First, a function to construct the trie:
>>> _end = '_end_'
>>>
>>> def make_trie(*words):
... ...
What happens when a computer program runs?
...ptions, etc.
+-----------+ 0x400
| interrupt | the interrupt vector table, starting from 0 and going to 1k, contained
| vector | the addresses of routines called when interrupts occurred. e.g.
| table | interrupt 0x21 checked the address at 0x21*4 and far-jumped to that
| | locat...
What would be a good docker webdev workflow?
...r) using git (on host) and "reload" initial state anytime you want (before starting mysql container).
Yes, I think you should have a separate container for db.
I am using just basic script:
#!/bin/bash
$JOB1 = (docker run ... /usr/sbin/mysqld)
$JOB2 = (docker run ... /usr/sbin/apache2)
echo MySql...