大约有 40,000 项符合查询结果（耗时：0.0549秒） [XML]
How to make a background 20% transparent on Android
How do I make the background of a Textview about 20% transparent (not fully transparent), where there is a color in the background (i.e. white)?
...
Joda-Time: what's the difference between Period, Interval and Duration?
... zone. Specific times are defined e.g. this might be the interval between 20:00:00GMT yesterday and 09:00:00GMT this morning.
A duration in Joda-Time represents a duration of time measured in milliseconds. The duration is often obtained from an interval. i.e. we can subtract start from end of an in...
What is data oriented design?
...he slot takes, say, 64 bytes as well. If I want to update the position of 10 balls, I have to pull in 10*64 = 640 bytes of memory into cache and get 10 cache misses. If however I can work the positions of the balls as separate units, that will only take 4*10 = 40 bytes. That fits in one cache fetch....
Set margin size when converting from Markdown to PDF with pandoc
...h one would include
---
title: "Habits"
author: John Doe
date: March 22, 2005
geometry: margin=2cm
output: pdf_document
---
For more complex specifications to be passed to the geometry LaTeX package, string options together as you would with LaTeX:
---
title: "Habits"
author: John Doe
date: Marc...
Git clone without .git directory
...
220
Use
git clone --depth=1 --branch=master git://someserver/somerepo dirformynewrepo
rm -rf ./dir...
what is the preferred way to mutate a React state?
...].
– Sophie Alpert
May 31 '14 at 21:00
2
As much as I appreciate the idea behind immutability hel...
Detect Chrome extension first run / update
...
Alvin WongAlvin Wong
11.2k55 gold badges4040 silver badges7171 bronze badges
2
...
Is it unnecessary to put super() in constructor?
...
zb226
7,01144 gold badges3535 silver badges6262 bronze badges
answered Jan 13 '10 at 2:48
cletuscletus
...
How to round an average to 2 decimal places in PostgreSQL?
...For example:
regress=> SELECT to_char(float8 '3.1415927', 'FM999999999.00');
to_char
---------------
3.14
(1 row)
to_char will round numbers for you as part of formatting. The FM prefix tells to_char that you don't want any padding with leading spaces.
...
How to return a file using Web API?
... |
edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Jun 20 '12 at 18:20
...