大约有 46,000 项符合查询结果(耗时:0.0784秒) [XML]

https://stackoverflow.com/ques... 

Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]

...ementation which is coming in the imminent 2.8 release. Those familiar with the library from 2.7 will notice that the library, from a usage perspective, has changed little. For example... ...
https://stackoverflow.com/ques... 

Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?

...o square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode! ...
https://stackoverflow.com/ques... 

Why don't self-closing script elements work?

...nce of an element whose content model is not EMPTY (for example, an empty title or paragraph) do not use the minimized form (e.g. use <p> </p> and not <p />). XHTML DTD specifies script elements as: <!-- script statements, which may include CDATA sections --> <!ELEMENT ...
https://stackoverflow.com/ques... 

Why does !{}[true] evaluate to true in JavaScript?

...cause plain {}[true] is parsed as an empty statement block (not an object literal) followed by an array containing true, which is true. On the other hand, applying the ! operator makes the parser interpret {} as an object literal, so the following {}[true] becomes a member access that returns undef...
https://stackoverflow.com/ques... 

Why use prefixes on member variables in C++ classes

... You have to be careful with using a leading underscore. A leading underscore before a capital letter in a word is reserved. For example: _Foo _L are all reserved words while _foo _l are not. There are other situations where leading underscor...
https://stackoverflow.com/ques... 

Why is “except: pass” a bad programming practice?

...metimes I just don't care what the errors are and I want to just continue with the code. 16 Answers ...
https://stackoverflow.com/ques... 

Differences between distribute, distutils, setuptools and distutils2?

...t updated" date displayed, so you can check the recency of the manual, and it's quite comprehensive. The fact that it's hosted on a subdomain of python.org of the Python Software Foundation just adds credence to it. The Project Summaries page is especially relevant here. Summary of tools: Here's a...
https://stackoverflow.com/ques... 

How to read a (static) file from inside a Python package?

... [added 2016-06-15: apparently this doesn't work in all situations. please refer to the other answers] import os, mypackage template = os.path.join(mypackage.__path__[0], 'templates', 'temp_file') share ...
https://stackoverflow.com/ques... 

Why must we define both == and != in C#?

...he C# compiler requires that whenever a custom type defines operator == , it must also define != (see here ). 13 Answer...
https://stackoverflow.com/ques... 

When should I use Inline vs. External Javascript?

I would like to know when I should include external scripts or write them inline with the html code, in terms of performance and ease of maintenance. ...