大约有 45,051 项符合查询结果（耗时：0.0308秒） [XML]
How do you properly determine the current script directory in Python?
...name(os.path.abspath(__file__))
is indeed the best you're going to get.
It's unusual to be executing a script with exec/execfile; normally you should be using the module infrastructure to load scripts. If you must use these methods, I suggest setting __file__ in the globals you pass to the script...
Checking if a variable is defined?
...
Use the defined? keyword (documentation). It will return a String with the kind of the item, or nil if it doesn’t exist.
>> a = 1
=> 1
>> defined? a
=> "local-variable"
>> defined? b
=> nil
>> defined? nil
=> "nil"
>> ...
Set width of a “Position: fixed” div relative to parent div
I'm trying to give a div (position: fixed) the width of 100% (relating to it's parent div). But I've got some problems...
1...
C# Class naming convention: Is it BaseClass or ClassBase or AbstractClass
What is the recommended approach to naming base classes? Is it prefixing the type name with " Base " or " Abstract " or would we just suffix it with "Base"?
...
Key hash for Android-Facebook app
...cebook-Android SDK, and I got
the readme.md (text file) in there, in which it is mentioned to generate
the key hash for Android. How do I generate it?
...
Could not find default endpoint element
...include the WS configuration settings into the main projects app.config if its a winapp or web.config if its a web app. This is the way to go even with PRISM and WPF/Silverlight.
share
|
improve thi...
Operator precedence with Javascript Ternary operator
... to wrap my head around the first part of this code ( += ) in combination with the ternary operator.
7 Answers
...
RegEx to extract all matches from string using RegExp.exec
...s);
if (m) {
console.log(m[1], m[2]);
}
} while (m);
Try it with this JSFiddle: https://jsfiddle.net/7yS2V/
share
|
improve this answer
|
follow
...
Python assigning multiple variables to same value? list behavior
I tried to use multiple assignment as show below to initialize variables, but I got confused by the behavior, I expect to reassign the values list separately, I mean b[0] and c[0] equal 0 as before.
...
What database does Google use?
Is it Oracle or MySQL or something they have built themselves?
8 Answers
8
...