大约有 16,000 项符合查询结果（耗时：0.0303秒） [XML]
What's the difference between HEAD^ and HEAD~ in Git?
... the parent of the commit (~~ and ^^ both refer to the grandparent commit, etc.) But they differ in meaning when they are used with numbers:
~2 means up two levels in the hierarchy, via the first parent if a commit has more than one parent
^2 means the second parent where a commit has more than on...
Does Python optimize tail recursion?
... functions, working in an interactive session rather than editing my code, etc.).
Optimizing tail-recursion in Python is in fact quite easy. While it is said to be impossible
or very tricky, I think it can be achieved with elegant, short and general solutions; I even
think that most of these soluti...
Initial bytes incorrect after Java AES/CBC decryption
...e, forgetting to convert to Base64, initialization vectors, character set, etc. So I thought of making a fully functional code.
Hope this will be useful to you all:
To compile you need additional Apache Commons Codec jar, which is available here:
http://commons.apache.org/proper/commons-codec/downl...
Best practices for SQL varchar column length [closed]
...e memory
than you have to. This affects cache efficiency, sorting speed, etc.
Basically, just come up with reasonable business constraints and error on a slightly larger size. As @onedaywhen pointed out, family names in UK are usually between 1-35 characters. If you decide to make it varchar(64)...
How is a tag different from a branch in Git? Which should I use, here?
... each branch that you may want to recreate -- for delivery, bug diagnosis, etc.
It's actually more complicated than this -- or as complicated as you want to make it -- but these examples should give you an idea of the differences.
...
Retrieve specific commit from a remote Git repository
...
Starting with Git version 2.5+ (Q2 2015), fetching a single commit (without cloning the full repo) is actually possible.
See commit 68ee628 by Fredrik Medley (moroten), 21 May 2015.
(Merged by Junio C Hamano -- gitster -- in commit a9d3493, 01 Jun 2015)
You now ha...
bool operator ++ and --
...R TRUE is TRUE, x OR FALSE is x, x AND FALSE is FALSE and x AND TRUE is x, etc using the same operators for boolean and bit-wise operations (since VB assumes twos-complement so -1 is all 1 bits). However, this can cause some strange bugs in VB if the coder doesn't catch that 2 (true) AND 4 (true) re...
What is an example of the simplest possible Socket.io example?
...ke a few minutes depending on the speed of your network connection / CPU / etc. To check that everything went as planned, you can look at the package.json file again.
$ cat package.json
{
"dependencies": {
"express": "~4.9.8",
"socket.io": "~1.1.0"
}
}
Create a file called server.js ...
How the single threaded non blocking IO model works in Node.js
...l open/read/write operation on devices and resources (sockets, filesystem, etc.) managed by the file-system don't block the calling thread (as in the typical synchronous c-like model) and just mark the process (in kernel/OS level data structure) to be notified when new data or events are available. ...
What is the difference between Numpy's array() and asarray() functions?
...a copy is needed to satisfy any of the
other requirements (dtype, order, etc.).
subok : bool, optional If True, then sub-classes will be
passed-through, otherwise the returned array will be forced to be a
base-class array (default).
ndmin : int, optional Specifies the minimum number ...