大约有 44,000 项符合查询结果(耗时:0.0525秒) [XML]

https://stackoverflow.com/ques... 

How to darken a background using CSS?

...HOLE body. Is there any way I can just make the background-image darker, and not everything else? 8 Answers ...
https://stackoverflow.com/ques... 

Any gotchas using unicode_literals in Python 2.6?

...f-8 encoded string (not unicode) since it did not import unicode_literals, and one.name is an unicode string. When you mix both, python tries to decode the encoded string (assuming it's ascii) and convert it to unicode and fails. It would work if you did print name + two.name.decode('utf-8'). The s...
https://stackoverflow.com/ques... 

How do I get Pyflakes to ignore a statement?

... (in which the space is significant - 2 spaces between the end of the code and the #, one between it and the NOQA text) will tell the checker to ignore any errors on that line. share | improve this ...
https://stackoverflow.com/ques... 

How to open link in new tab on html?

I'm working on an HTML project, and I can't find out how to open a link in a new tab without javascript. 10 Answers ...
https://stackoverflow.com/ques... 

std::enable_if to conditionally compile a member function

I am trying to get a simple example to work to understand how to use std::enable_if . After I read this answer , I thought it shouldn't be too hard to come up with a simple example. I want to use std::enable_if to choose between two member-functions and allow only one of them to be used. ...
https://stackoverflow.com/ques... 

What is the most efficient string concatenation method in python?

... Guido. Although it is worth remembering also that this is an old article and it predates the existence of things like ''.join (although I guess string.joinfields is more-or-less the same) On the strength of that, the array module may be fastest if you can shoehorn your problem into it. But ''.jo...
https://stackoverflow.com/ques... 

How to implement an STL-style iterator and avoid common pitfalls?

I made a collection for which I want to provide an STL-style, random-access iterator. I was searching around for an example implementation of an iterator but I didn't find any. I know about the need for const overloads of [] and * operators. What are the requirements for an iterator to be "STL-s...
https://stackoverflow.com/ques... 

Catch an exception thrown by an async void method

...ion of the call. */ } } Async void methods have different error-handling semantics. When an exception is thrown out of an async Task or async Task method, that exception is captured and placed on the Task object. With async void methods, there is no Task object, so any exceptions thrown ou...
https://stackoverflow.com/ques... 

How many GCC optimization levels are there?

...e even more) -Ofast (optimize very aggressively to the point of breaking standard compliance) -Og (Optimize debugging experience. -Og enables optimizations that do not interfere with debugging. It should be the optimization level of choice for the standard edit-compile-debug cycle, offeri...
https://stackoverflow.com/ques... 

Oracle “(+)” Operator

I am checking some old SQL Statements for the purpose of documenting them and probably enhancing them. 4 Answers ...