大约有 41,400 项符合查询结果（耗时：0.0324秒） [XML]
str performance in python
...%s')
3 LOAD_FAST 0 (x)
6 BINARY_MODULO
7 RETURN_VALUE
Of course the above is true for the system I tested on (CPython 2.7); other implementations may differ.
...
CSS styling in Django forms
...orms.TextInput(attrs={'class' : 'myfieldclass'}))
or
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
def __init__(self, *args, **kwargs):
super(MyForm, self).__init__(*args, **kwargs)
self.fields['myfield'].widget.attrs.update({'class' : 'myfieldclass'}...
Multi-line string with extra space (preserved indentation)
...
Thanks for explaining why mod sees extra space when using “echo” command. This answer also is working well when using in bash script (as oppose to interactive shell session). Feel like this is the real answer and should be an accepted answer.
...
diff to output only the file names
...Stack Exchange, but I'll copy it here as well:
To create a list of new or modified files programmatically the best solution I could come up with is using rsync, sort, and uniq:
(rsync -rcn --out-format="%n" old/ new/ && rsync -rcn --out-format="%n" new/ old/) | sort | uniq
Let me explain...
Bash Templating: How to build configuration files from templates with Bash?
...RI="/hows-it-goin"; MONITOR_IP="10.10.2.15";
cat >/etc/apache2/conf.d/mod_status.conf <<EOF
<Location ${STATUS_URI}>
SetHandler server-status
Order deny,allow
Deny from all
Allow from ${MONITOR_IP}
</Location>
EOF
...
Good reasons NOT to use a relational database?
... ability to validate the structure.
Spreadsheet / CSV file
Very easy model for business users to understand
Subversion (or similar disk based version control system)
Very good support for versioning of data
Berkeley DB (Basically, a disk based hashtable)
Very simple conceptually (j...
How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
...(see PR 10962 and commit 15c487fe) you can use the new useCurrent() column modifier method to set the CURRENT_TIMESTAMP as a default value for a column:
$table->timestamp('created_at')->useCurrent();
Back to the question, on MySQL you could also use the ON UPDATE clause through DB::raw():
...
How do I get user IP address in django?
... ip
Make sure you have reverse proxy (if any) configured correctly (e.g. mod_rpaf installed for Apache).
Note: the above uses the first item in X-Forwarded-For, but you might want to use the last item (e.g., in the case of Heroku: Get client's real IP address on Heroku)
And then just pass the re...
Why does HTML think “chucknorris” is a color?
...are not skipped, they are treated as 0.
– treat your mods well
Sep 28 '12 at 3:30
5
(WHile this a...
Why is jquery's .ajax() method not sending my session cookie?
...hanks! I needed to add these in public root .htaccess of my website: <IfModule mod_headers.c> Header set Access-Control-Allow-Origin "localhost" Header set Access-Control-Allow-Credentials "true" </IfModule>
– Vinay Vissh
Jun 4 '17 at 19:10
...