大约有 17,000 项符合查询结果（耗时：0.0308秒） [XML]
Formatting a number with leading zeros in PHP [duplicate]
...thing which expects a positive double digit number (Bank Account sort code etc). Please correct me if I'm wrong, but as far as I know, there is no real life instance of requiring a leading zero on a negative value?
– guyver4mk
Mar 14 '16 at 9:24
...
How do I write a bash script to restart a process if it dies?
... /usr/local/bin/myservermonitor
Alternatively; look at inittab(5) and /etc/inittab. You can add a line in there to have myserver start at a certain init level and be respawned automatically.
Edit.
Let me add some information on why not to use PID files. While they are very popular; they ar...
Extracting hours from a DateTime (SQL Server 2005)
...date]) returns the hour in military time ( 00 to 23 )
If you want 1AM, 3PM etc, you need to case it out:
SELECT Run_Time_Hour =
CASE DATEPART(HOUR, R.date_schedule)
WHEN 0 THEN '12AM'
WHEN 1 THEN '1AM'
WHEN 2 THEN '2AM'
WHEN 3 THEN '3AM'
WHEN 4 THEN '4AM'
WHEN 5 THE...
What is token-based authentication?
...username and password in order to
obtain a token which allows them to
fetch a specific resource - without
using their username and password.
Once their token has been obtained,
the user can offer the token - which
offers access to a specific resource
for a time period - to the remote
...
What is a software framework? [closed]
...oes give you window management, sub-window management, menus, button bars, etc. That's the framework side of things. By adding your application functionality and "plugging it in" to the right places in the framework you turn this empty app that does nothing more than window management, etc. into a...
How does “cat
....
The following does not work for that case:
$ sudo cat <<EOF >/etc/somedir/foo.conf
# my config file
foo=bar
EOF
because the redirection is handled outside of the sudo context.
I ended up using this instead:
$ sudo tee <<EOF /etc/somedir/foo.conf >/dev/null
# my config file
...
PostgreSQL naming conventions
...table names vs. camel case, sequences, primary keys, constraints, indexes, etc...)
2 Answers
...
Batch script to delete files
...ike this:
set olddir=%CD%
cd /d "path of folder"
del "file name/ or *.txt etc..."
cd /d "%olddir%"
How this works:
set olddir=%CD% sets the variable "olddir" or any other variable name you like to the directory
your batch file was launched from.
cd /d "path of folder" changes the current direct...
Node.js vs .Net performance
...ith Node (querying the database, retrieving data from an external service, etc etc). You'll see huge performance gains with Node over ASP.NET MVC.
– alessioalex
May 18 '12 at 8:40
...
What are the differences between struct and class in C++?
...ucts, just like with classes, but people tend not to), no virtual methods, etc. Since languages are as much to communicate with people reading the code as to instruct machines (or else we'd stick with assembly and raw VM opcodes) it's a good idea to stick with that.
...