大约有 44,944 项符合查询结果（耗时：0.0883秒） [XML]
How to validate a url in Python? (Malformed or not)
I have url from the user and I have to reply with the fetched HTML.
10 Answers
10
...
How do I remove  from the beginning of a file?
I have a CSS file that looks fine when I open it using gedit , but when it's read by PHP (to merge all the CSS files into one), this CSS has the following characters prepended to it: 
...
Comparing date part only without comparing time in JavaScript
What is wrong with the code below?
22 Answers
22
...
How do you migrate an IIS 7 site to another server?
I'm wondering what is the best practice for moving a website to another server (along with all settings, etc.)
7 Answers
...
How to wait 5 seconds with jQuery?
...tion()
{
//do something special
}, 5000);
UPDATE: you want to wait since when the page has finished loading, so put that code inside your $(document).ready(...); script.
UPDATE 2: jquery 1.4.0 introduced the .delay method. Check it out. Note that .delay only works with the jQuery effects...
CSS center text (horizontally and vertically) inside a div block
...
If it is one line of text and/or image, then it is easy to do. Just use:
text-align: center;
vertical-align: middle;
line-height: 90px; /* The same as your div height */
That's it. If it can be multiple lines, then it i...
Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?
...appealing, but ultimately not a great idea. That queue could be a low priority queue, the main queue, or some other queue with odd properties.
My favorite approach to this is to say "the completion block runs on an implementation defined queue with these properties: x, y, z", and let the block disp...
Does Java have a path joining method? [duplicate]
... 7 and earlier.
To quote a good answer to the same question:
If you want it back as a string later, you can call getPath(). Indeed, if you really wanted to mimic Path.Combine, you could just write something like:
public static String combine (String path1, String path2) {
File file1 = new Fil...
Does PNG contain EXIF data like JPG?
...
Edit: Version 1.5.0 (July 2017) of the Extensions to the PNG 1.2 Specification has finally added an EXIF chunk. It remains to be seen if encoders-decoders begin to support it.
Original: PNG does not embed EXIF info. It allows,...
Find a value anywhere in a database
Given a #, how do I discover in what table and column it could be found within?
18 Answers
...