大约有 42,000 项符合查询结果（耗时：0.0670秒） [XML]
Batch script: how to check for admin rights
...ns
analyzing data returned from FOR loops
searching strings for "Administrator"
using AT (Windows 8 incompatible) or WHOAMI (Windows XP incompatible).
Each of which have their own security, usability, and portability issues.
Testing
I've independently confirmed that this works on:
Window...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
I am trying to set up a VPN with a Raspberry Pi, and the first step is gaining the ability to ssh into the device from outside my local network. For whatever reason, this is proving to be impossible and I haven't the slightest clue why. When I try to ssh into my server with user@hostname , I ge...
How do I use extern to share variables between source files?
... when the program you're building
consists of multiple source files linked together, where some of the
variables defined, for example, in source file file1.c need to be
referenced in other source files, such as file2.c.
It is important to understand the difference between defining a
variable and dec...
Most efficient T-SQL way to pad a varchar on the left to a certain length?
As compared to say:
19 Answers
19
...
Why generate long serialVersionUID instead of a simple 1L?
..., but many times I saw people using the second option. Is there any reason to generate long serialVersionUID ?
11 Answers
...
Where does Java's String constant pool live, the heap or the stack?
... the concept of a constants pool and the String constant pool used by JVMs to handle String literals. But I don't know which type of memory is used by the JVM to store String constant literals. The stack or the heap? Since its a literal which is not associated with any instance I would assume that i...
How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
...
How to get a subset of a javascript object's properties
...
How did you learn about how to do this? Nowhere in any docs or articles I've seen (including MDN) does it show the arrow syntax being used in Object Destructuring. This is very nice to know.
– papiro
Jan 3 '17 at...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
If I have an array in Swift, and try to access an index that is out of bounds, there is an unsurprising runtime error:
19 A...
Pass array to mvc Action via AJAX
I'm trying to pass an array (or IEnumerable) of ints from via AJAX to an MVC action and I need a little help.
11 Answers
...