大约有 48,000 项符合查询结果（耗时：0.0449秒） [XML]
Set every cell in matrix to 0 if that row or column contains a 0
... using the final row/column to store that information, so I was stuck with extra memory for a pair of Nx1 arrays.
– Dave Sherohman
Dec 8 '08 at 15:44
1
...
How to handle command-line arguments in PowerShell
...hem from console if not available or stop script execution:
param (
[string]$server = "http://defaultserver",
[Parameter(Mandatory=$true)][string]$username,
[string]$password = $( Read-Host "Input password, please" )
)
Inside the script you can simply
write-output $server
since a...
Rename all files in directory from $filename_h to $filename_half?
...
Nice use of bash's built-in string replacement rather than sed
– dandrews
Aug 5 '12 at 18:48
3
...
SQL: IF clause within WHERE clause
... Table
WHERE OrderNumber LIKE '%' + @OrderNumber
END
3) Using a long string, compose your SQL statement conditionally, and then use EXEC
The 3rd approach is hideous, but it's almost the only think that works if you have a number of variable conditions like that.
...
Java - Method name collision in interface implementation
...ormer case... suppose you really want an array of integers and an array of strings. Instead of inheriting from both List<Integer> and List<String>, you should have one member of type List<Integer> and another member of type List<String>, and refer to those members, rather th...
Why are exclamation marks used in Ruby methods?
...e that someone else might have a reference to. Here's a simple example for strings:
foo = "A STRING" # a string called foo
foo.downcase! # modifies foo itself
puts foo # prints modified foo
This will output:
a string
In the standard libraries, there are a lot of places you'll see...
Find size of an array in Perl
...$size;
The latter looks quite clear alone like this, but I find that the extra line takes away from clarity when part of other code. It's useful for teaching what @array does in scalar context, and maybe if you want to use $size more than once.
...
Convert a string representation of a hex dump to a byte array using Java?
I am looking for a way to convert a long string (from a dump), that represents hex values into a byte array.
24 Answers
...
Iterate over object attributes in python
...its member of type B. __repr__(), as I understand, is supposed to return a string. But when I call vars(a), it seems like it would make sense for this call to return a nested dict, instead of a dict with a string representation of B.
– plafratt
Apr 19 at 19:25
...
What is the most efficient way to store a list in the Django models?
...key relationship to a Friends table? I understand that myFriends are just strings but I would think that a better design would be to create a Friend model and have MyClass contain a foreign key realtionship to the resulting table.
...