大约有 15,000 项符合查询结果（耗时：0.0272秒） [XML]
Counting array elements in Python [duplicate]
... implementing one of the standard interfaces in Python (container, number, etc). Special methods are used via syntactic sugar (object creation, container indexing and slicing, attribute access, built-in functions, etc.).
Using obj.__len__() wouldn't be the correct way of using the special method, ...
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.
...
How to pipe list of files returned by find command to cat to view all the files
...command line arguments. Note that file names containing spaces (newlines, etc) will be broken into separate arguments, though.
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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
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How do I set $PATH such that `ssh user@host command` works?
...work connection". This works on RHEL, but not on Archlinux. I had to edit /etc/environment to change the default PATH
– basin
Apr 24 '13 at 4:22
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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 the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
... pattern, you produce instances of implementations (Apple, Banana, Cherry, etc.) of a particular interface -- say, IFruit.
With the Abstract Factory pattern, you provide a way for anyone to provide their own factory. This allows your warehouse to be either an IFruitFactory or an IJuiceFactory, with...
How to access remote server with local phpMyAdmin client?
...
Just add below lines to your /etc/phpmyadmin/config.inc.php file in the bottom:
$i++;
$cfg['Servers'][$i]['host'] = 'HostName:port'; //provide hostname and port if other than default
$cfg['Servers'][$i]['user'] = 'userName'; //user name for your remote...
Warn user before leaving web page with unsaved changes
...ecko + IE
return confirmationMessage; //Gecko + Webkit, Safari, Chrome etc.
});
The problem with this approach is that submitting a form is also firing the unload event. This is fixed easily by adding the a flag that you're submitting a form:
var formSubmitting = false;
var setFormSubmitting ...
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...