大约有 40,000 项符合查询结果(耗时:0.0346秒) [XML]

https://stackoverflow.com/ques... 

Difference between Python's Generators and Iterators

...ry generator is an iterator, but not vice versa. A generator is built by calling a function that has one or more yield expressions (yield statements, in Python 2.5 and earlier), and is an object that meets the previous paragraph's definition of an iterator. You may want to use a custom iterator, ra...
https://stackoverflow.com/ques... 

Best way to organize jQuery/JavaScript code (2013) [closed]

...not up to date. I have over 2000 lines of code in a single file, and as we all know this is bad practice, especially when i'm looking through code or adding new features. I want to better organize my code, for now and for the future. ...
https://stackoverflow.com/ques... 

How to implement a good __hash__ function in python [duplicate]

... are equal. It also shouldn't change over the lifetime of the object; generally you only implement it for immutable objects. A trivial implementation would be to just return 0. This is always correct, but performs badly. Your solution, returning the hash of a tuple of properties, is good. But note...
https://stackoverflow.com/ques... 

Get fully qualified class name of an object in Python

... With the following program #! /usr/bin/env python import foo def fullname(o): # o.__module__ + "." + o.__class__.__qualname__ is an example in # this context of H.L. Mencken's "neat, plausible, and wrong." # Python makes no guarantees as to whether the __module__ special #...
https://stackoverflow.com/ques... 

How do I get jQuery to select elements with a . (period) in their ID?

... For that reason, in CSS itself, you must escape a dot in an ID, too. All jQuery is doing is requiring you to follow the rules set out by CSS. – bdukes Apr 6 '09 at 14:11 6 ...
https://stackoverflow.com/ques... 

How can I print the contents of a hash in Perl?

I keep printing my hash as # of buckets / # allocated. How do I print the contents of my hash? 11 Answers ...
https://stackoverflow.com/ques... 

The tilde operator in Python

...a unary operator (taking a single argument) that is borrowed from C, where all data types are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed. In Python, for integers, the bits of the twos-complement repr...
https://stackoverflow.com/ques... 

Delete an element from a dictionary

...e del statement is what you're looking for. If you have a dictionary named foo with a key called 'bar', you can delete 'bar' from foo like this: del foo['bar'] Note that this permanently modifies the dictionary being operated on. If you want to keep the original dictionary, you'll have to create ...
https://stackoverflow.com/ques... 

VB.NET equivalent to C# var keyword [duplicate]

...ype '<variablename>' is not defined." - and VarType(variable) is actually just the VB version of variable.GetType() which returns the type of the instance stored in the variable at runtime) I used: Function MyVarType(Of T)(ByRef Var As T) As Type Return GetType(T) End Function In detail...
https://stackoverflow.com/ques... 

How to rsync only a specific list of files?

... for me using the --include-from option. Without the --exclude="*" option, all the files in the directory are being synced, with the option, no files are. ...