大约有 14,600 项符合查询结果（耗时：0.0371秒） [XML]
How do cache lines work?
... transferring the 8B-aligned chunk containing the desired byte first, i.e. starting the burst there (and wrapping around if it wasn't the first 8B of the burst transfer size). Modern CPUs with multi-level caches probably don't do that anymore, though, because it would mean relaying the first block(...
How to choose the right bean scope?
...CDI scope and in JSF 2.2 substituted with @FlowScoped (no need to manually start/stop it).
– BalusC
Jan 30 '16 at 20:41
1
...
Simple regular expression for a decimal with a precision of 2
...ire that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form):
^\d+(\.\d{1,2})?$
To match numbers without a leading digit before the decimal (.12) and whole numbers having a trailing period (12.) while excluding input of a single period (.)...
How do you do relative time in Rails?
...
Something like this would work.
def relative_time(start_time)
diff_seconds = Time.now - start_time
case diff_seconds
when 0 .. 59
puts "#{diff_seconds} seconds ago"
when 60 .. (3600-1)
puts "#{diff_seconds/60} minutes ago"
when 3600 .. (3600*24-1)...
How do I clear/delete the current line in terminal?
...d: Ctrl+W
To clear your entire command prompt: Ctrl + L
Toggle between the start of line and current cursor position: Ctrl + XX
share
|
improve this answer
|
follow
...
EOFError: end of file reached issue with Net::HTTP
...r me. My new code is:
@http = Net::HTTP.new('domain.com')
@http = @http.start
url = 'http://domain.com/requested_url?blah=blah&etc=1'
req = Net::HTTP::Get.new(URI.encode(url))
req.basic_auth USERNAME, API_KEY
res = @http.request(req)
Note that I use @http.start as I want to maintain th...
How to replace plain URLs with links?
...placedText, replacePattern1, replacePattern2, replacePattern3;
//URLs starting with http://, https://, or ftp://
replacePattern1 = /(\b(https?|ftp):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gim;
replacedText = inputText.replace(replacePattern1, '<a href="$1" target...
Transitioning from Windows Forms to WPF
For a long time now, I have been stuck with Windows Forms development (started with VB6, and has continued through to C# .NET 4.5), and I have pretty much hit the limit of what Windows Forms can do, both using pure .NET, and special effects with Native Code.
...
Configuration System Failed to Initialize
... config file (web.config if web, or app.config if windows) in your project starts as:
<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="applicationSettings"
type="System.Configuration.ApplicationSettingsGroup, System, ...
image processing to improve tesseract OCR accuracy
...s an OCR expert. But I this week had need to convert text out of a jpg.
I started with a colorized, RGB 445x747 pixel jpg.
I immediately tried tesseract on this, and the program converted almost nothing.
I then went into GIMP and did the following.
image>mode>grayscale
image>scale imag...