大约有 47,000 项符合查询结果(耗时:0.0530秒) [XML]

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namedtuple and default values for optional keyword arguments

... I subclassed namedtuple and overrode the __new__ method: from collections import namedtuple class Node(namedtuple('Node', ['value', 'left', 'right'])): __slots__ = () def __new__(cls, value, left=None, right=None): return super(Nod...
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?

If I have some integer n, and I want to know the position of the most significant bit (that is, if the least significant bit is on the right, I want to know the position of the furthest left bit that is a 1), what is the quickest/most efficient method of finding out? ...
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The identity used to sign the executable is no longer valid

... It works for me as well. command + Q to exit XCode and restart. Cheers! – Joey Aug 30 '13 at 4:38 9 ...
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How to find largest objects in a SQL Server database?

...est objects in a SQL Server database? First, by determining which tables (and related indices) are the largest and then determining which rows in a particular table are largest (we're storing binary data in BLOBs)? ...
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Invoking JavaScript code in an iframe from the parent page

Basically, I have an iframe embedded in a page and the iframe has some JavaScript routines I need to invoke from the parent page. ...
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How to change the name of an iOS app?

... began an iPhone project the other day with a silly development code name, and now I want to change the name of the project since it's nearly finished. ...
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Efficient way to remove keys with empty strings from a dict

I have a dict and would like to remove all the keys for which there are empty value strings. 17 Answers ...
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Git Push ERROR: Repository not found

I am having a very strange problem with git and github . When I try and push, I am getting: 46 Answers ...
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What is the difference between static func and class func in Swift?

... Is it simply that static is for static functions of structs and enums, and class for classes and protocols? That's the main difference. Some other differences are that class functions are dynamically dispatched and can be overridden by subclasses. Protocols use the class keyword, b...
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How can I pad a value with leading zeros?

...o readers! As commenters have pointed out, this solution is "clever", and as clever solutions often are, it's memory intensive and relatively slow. If performance is a concern for you, don't use this solution! Potentially outdated: ECMAScript 2017 includes String.prototype.padStart and...