大约有 47,000 项符合查询结果（耗时：0.0618秒） [XML]
Add leading zeroes/0's to existing Excel values to certain length
...uestions and quality answers on SO regarding how to prevent leading zeroes from getting stripped when importing to or exporting from Excel. However, I already have a spreadsheet that has values in it that were truncated as numbers when, in fact, they should have been handled as strings. I need to ...
TCP loopback connection vs Unix Domain Socket performance
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the first link is citing the second link, which is from 2005 (old). and it only covers FreeBSD
– Janus Troelsen
Jan 31 '14 at 16:34
7
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REST HTTP status codes for failed validation or invalid duplicate
...The only other alternative is 422 Unprocessable Entity. It actually comes from WebDav but it is perfectly valid to reuse any status code that has been registered with IANA.
– Darrel Miller
Jul 20 '10 at 19:38
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Technically, why are processes in Erlang more efficient than OS threads?
From Erlang Programming (2009):
7 Answers
7
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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
... unnecessary copy).
function handle_array($my_array) {
// ... read from but do not modify $my_array
print_r($my_array);
// ... $my_array effectively passed by reference since no copy is made
}
However if you modify the array, a copy of it is made first (which uses more memory but ...
Python script to copy text to clipboard [duplicate]
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See Pyperclip. Example (taken from Pyperclip site):
import pyperclip
pyperclip.copy('The text to be copied to the clipboard.')
spam = pyperclip.paste()
Also, see Xerox. But it appears to have more dependencies.
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Sorted collection in Java
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From the Javadoc: "The Iterator provided in method iterator() is not guaranteed to traverse the elements of the PriorityQueue in any particular order."
– Christoffer Hammarström
Mar 2 '...
Explanation of the UML arrows
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Here's some explanations from the Visual Studio 2015 docs:
UML Class Diagrams: Reference: https://msdn.microsoft.com/library/dd409437%28VS.140%29.aspx
5: Association: A relationship between the members of two classifiers.
5a: Aggregation: An associ...
NSNotificationCenter addObserver in Swift
...idChangeNotification,
object: nil)
If your observer does not inherit from an Objective-C object, you must prefix your method with @objc in order to use it as a selector.
@objc private func batteryLevelChanged(notification: NSNotification){
//do stuff using the userInfo property of th...
How to save traceback / sys.exc_info() values in a variable?
...ng traceback module. Is there someway we can just print trace-back details from this object reference? sys.exc_info()[2]
– codersofthedark
Nov 23 '11 at 8:24
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