大约有 40,700 项符合查询结果(耗时:0.0460秒) [XML]

https://stackoverflow.com/ques... 

How can you program if you're blind?

Sight is one of the senses most programmers take for granted. Most programmers would spend hours looking at a computer monitor (especially during times when they are in the zone ), but I know there are blind programmers (such as T.V. Raman who currently works for Google). ...
https://stackoverflow.com/ques... 

Best Practices: working with long, multiline strings in PHP?

Note: I'm sorry if this is an extremely simple question but I'm somewhat obsessive compulsive over the formatting of my code. ...
https://stackoverflow.com/ques... 

What characters are allowed in an email address?

...9; special characters !#$%&'*+-/=?^_`{|}~; dot ., provided that it is not the first or last character unless quoted, and provided also that it does not appear consecutively unless quoted (e.g. John..Doe@example.com is not allowed but "John..Doe"@example.com is allowed); space and "(),:;&lt...
https://stackoverflow.com/ques... 

Check whether HTML element has scrollbars

... I found this somewhere a couple of weeks ago. It worked for me. var div = document.getElementById('container_div_id'); var hasHorizontalScrollbar = div.scrollWidth > div.clientWidth; var hasVerticalScrollbar = div.scrollHeight &gt...
https://stackoverflow.com/ques... 

How do I make an HTML text box show a hint when empty?

I want the search box on my web page to display the word "Search" in gray italics. When the box receives focus, it should look just like an empty text box. If there is already text in it, it should display the text normally (black, non-italics). This will help me avoid clutter by removing the label....
https://stackoverflow.com/ques... 

Replace a value in a data frame based on a conditional (`if`) statement

... <- "b" EDIT: And if indeed you need to maintain nm as factors, add this in the end: junk$nm <- as.factor(junk$nm) share | improve this answer | follow ...
https://stackoverflow.com/ques... 

Evil Mode best practice? [closed]

...y editor for years and tried Emacs several times during that time. Then I discovered Evil and decided that it meets my demand for speedy movement well enough that I can finally move on to Emacs. ...
https://stackoverflow.com/ques... 

How can I debug my JavaScript code? [closed]

... Firebug is one of the most popular tools for this purpose. share | improve this answer | follow ...
https://stackoverflow.com/ques... 

how can I Update top 100 records in sql server

... share | improve this answer | follow | edited May 23 '14 at 22:26 Sean 6,61733 gold badge...
https://stackoverflow.com/ques... 

Pros and cons of Java rules engines [closed]

...xample, a typical storefront system might involve code to calculate a discount: if (product.quantity > 100 && product.quantity < 500) { product.discount = 2; } else if (product.quantity >= 500 && product.quantity < 2000) { product.discount = 5; } else if (product...