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关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
... {
// 接受客户端连接
$newconn = socket_accept($socket);
$i = (int) $newconn;
$reject = '';
if (count(self::$connections) >= self::$maxconns) {
$reject = "Server full, Try again later./n";
}
// 将当前客户端连接放入 socket_select 选择
self::$connection...
How and why does 'a'['toUpperCase']() in JavaScript work?
...rCase() is a method of String.prototype
'a' is a primitive value, but gets converted into its Object representation
We have two possible notations to access object properties/methods, dot and bracket notation
So
'a'['toUpperCase'];
is the access via bracket notation on the property toUpperCase,...
Nested defaultdict of defaultdict
...
here is a recursive function to convert a recursive default dict to a normal dict
def defdict_to_dict(defdict, finaldict):
# pass in an empty dict for finaldict
for k, v in defdict.items():
if isinstance(v, defaultdict):
# new l...
When should we use Observer and Observable?
An interviewer asked me:
10 Answers
10
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Linq order by boolean
...east with this solution, the code makes it painfully obvious which way you intend to sort.
– Robert Noack
Jul 29 '13 at 20:24
2
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When should an IllegalArgumentException be thrown?
...ive measure to complain about obviously bad input before the input can get into the works and cause something to fail halfway through with a nonsensical error message.
It's used for cases where it would be too annoying to throw a checked exception (although it makes an appearance in the java.lang.r...
Image Segmentation using Mean Shift explained
...
A Mean-Shift segmentation works something like this:
The image data is converted into feature space
In your case, all you have are intensity values, so feature space will only be one-dimensional. (You might compute some texture features, for instance, and then your feature space would be two d...
Advantages and disadvantages of GUID / UUID database keys
...dered going down this path a few times, but there's always a bit of uncertainty, especially around performance and un-read-out-over-the-phone-able URLs.
...
Overriding !important style
...y to just use the hyphenated form instead, or if you need to automatically convert it just write a function.
– nyuszika7h
Dec 29 '18 at 13:46
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How to get the path of the batch script in Windows?
...
%~dp0 may be a relative path.
To convert it to a full path, try something like this:
pushd %~dp0
set script_dir=%CD%
popd
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