大约有 43,000 项符合查询结果(耗时:0.0622秒) [XML]

https://stackoverflow.com/ques... 

Rails 3.1 and Image Assets

... public folder should not have much in it anymore, mostly just error pages and a favicon. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Why doesn't C have unsigned floats?

...If C++ did support it, then you would be sometimes using an unsigned float and not realizing that your performance has just been killed. If C++ supported it then every floating point operation would need to be checked to see if it is signed or not. And for programs that do millions of floating poi...
https://stackoverflow.com/ques... 

Hidden features of Python [closed]

...ue In case you're thinking it's doing 1 < x, which comes out as True, and then comparing True < 10, which is also True, then no, that's really not what happens (see the last example.) It's really translating into 1 < x and x < 10, and x < 10 and 10 < x * 10 and x*10 < 100, but...
https://stackoverflow.com/ques... 

Multiple submit buttons on HTML form – designate one button as default [duplicate]

...n; } #buttons input { float: right; } will effectively reverse the order and thus the "Next" button will be the value triggered by hitting enter. This kind of technique will cover many circumstances without having to resort to more hacky JavaScript methods. ...
https://stackoverflow.com/ques... 

Visual C++: How to disable specific linker warnings?

...l linker option: /ignore:4099 This is in Properties->Linker->Command Line share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How to draw polygons on an HTML5 canvas?

... Create a path with moveTo and lineTo (live demo): var ctx = canvas.getContext('2d'); ctx.fillStyle = '#f00'; ctx.beginPath(); ctx.moveTo(0, 0); ctx.lineTo(100,50); ctx.lineTo(50, 100); ctx.lineTo(0, 90); ctx.closePath(); ctx.fill(); ...
https://stackoverflow.com/ques... 

How to use LINQ to select object with minimum or maximum property value

... Probably a little slower than just implementing IComparable and using Min (or a for loop). But +1 for a O(n) linqy solution. – Matthew Flaschen May 27 '09 at 6:07 4...
https://stackoverflow.com/ques... 

Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?

In multiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a go...
https://stackoverflow.com/ques... 

How to center a subview of UIView

I have a UIView inside a UIView m and I want the inner UIView to be always centered inside the outer one, without it having to resize the width and height. ...
https://stackoverflow.com/ques... 

Best practice to call ConfigureAwait for all server-side code

When you have server-side code (i.e. some ApiController ) and your functions are asynchronous - so they return Task<SomeObject> - is it considered best practice that any time you await functions that you call ConfigureAwait(false) ? ...