大约有 13,700 项符合查询结果（耗时：0.0251秒） [XML]
How to validate IP address in Python? [duplicate]
...
Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
share
|
improve this answer
|
follow
...
Passing arguments to C# generic new() of templated type
... is:
// this delegate is just, so you don't have to pass an object array. _(params)_
public delegate object ConstructorDelegate(params object[] args);
public static ConstructorDelegate CreateConstructor(Type type, params Type[] parameters)
{
// Get the constructor info for these parameters
...
Do regular expressions from the re module support word boundaries (\b)?
...;> x = 'one two three'
>>> y = k.search( x)
>>> y
<_sre.SRE_Match object at 0x100418850>
Also forgot to mention, you should be using raw strings in your code
>>> x = 'one two three'
>>> y = re.search(r"\btwo\b", x)
>>> y
<_sre.SRE_Match obj...
How to compare 2 files fast using .NET?
...re the resulting numbers.
Here's what I came up with:
const int BYTES_TO_READ = sizeof(Int64);
static bool FilesAreEqual(FileInfo first, FileInfo second)
{
if (first.Length != second.Length)
return false;
if (string.Equals(first.FullName, second.FullName, ...
SqlException from Entity Framework - New transaction is not allowed because there are other threads
... the IList<T>.
Example:
IList<Client> clientList = from a in _dbFeed.Client.Include("Auto") select a;
foreach (RivWorks.Model.NegotiationAutos.Client client in clientList)
{
var companyFeedDetailList = from a in _dbRiv.AutoNegotiationDetails where a.ClientID == client.ClientID selec...
What are file descriptors, explained in simple terms?
...ited Feb 19 '15 at 22:55
Freedom_Ben
8,59888 gold badges4949 silver badges8080 bronze badges
answered Mar 10 '11 at 7:31
...
Difference between two dates in Python
... objects and take the days member.
from datetime import datetime
def days_between(d1, d2):
d1 = datetime.strptime(d1, "%Y-%m-%d")
d2 = datetime.strptime(d2, "%Y-%m-%d")
return abs((d2 - d1).days)
share
...
How to hide output of subprocess in Python 2.7
... use os.devnull if subprocess.DEVNULL is not available (<3.3), use check_call() instead of call() if you don't check its returned code, open files in binary mode for stdin/stdout/stderr, usage of os.system() should be discouraged, &> doesn't work for sh on Ubuntu an explicit >/dev/null ...
How does the SQL injection from the “Bobby Tables” XKCD comic work?
... you can only run multiple statements in one SQL string by using the mysqli_multi_query function.
You can, however, manipulate an existing SQL statement via SQL injection without having to add a second statement. Let's say you have a login system which checks a username and a password with this sim...
Is there a JavaScript strcmp()?
... well as in the mozilla Javascript reference (developer.mozilla.org/en/Core_JavaScript_1.5_Reference/…)
– newacct
Jul 24 '09 at 19:37
...