大约有 4,400 项符合查询结果（耗时：0.0210秒） [XML]
What exactly is a Maven Snapshot and why do we need it?
...ion in Maven is one that has not been released.
The idea is that before a 1.0 release (or any other release) is done, there exists a 1.0-SNAPSHOT. That version is what might become 1.0. It's basically "1.0 under development". This might be close to a real 1.0 release, or pretty far (right after the...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
...
Behavior differences
Some differences on Bash 4.3.11:
POSIX vs Bash extension:
[ is POSIX
[[ is a Bash extension¹
regular command vs magic
[ is just a regular command with a weird name.
] is just an argument of [ that prevents further arguments from being used.
U...
Generate colors between red and green for a power meter?
...lt;0.5: #first, green stays at 100%, red raises to 100%
green = 1.0
red = 2 * power
if 0.5<=power<=1: #then red stays at 100%, green decays
red = 1.0
green = 1.0 - 2 * (power-0.5)
The red, green, blue values in the above example are percentages, you'd probably wa...
How do I put the image on the right side of the text in a UIButton?
...ion:
iOS 10 & up, Swift:
button.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
button.titleLabel?.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
button.imageView?.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
Before iOS 10, Swift/Obj-C:
button.transform = CGAffineTransformMakeSc...
Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...
I couldn't get any of these solutions to work either. I tried Paperclip 3.1, but couldn't then my app kept telling me my image file extensions weren't approved, even though they were jpg.
I finally found success with version 3.5.1.
...
XDocument.ToString() drops XML Encoding Tag
...st
{
static void Main()
{
string xml = @"<?xml version='1.0' encoding='utf-8'?>
<Cooperations>
<Cooperation />
</Cooperations>";
XDocument doc = XDocument.Parse(xml);
StringBuilder builder = new StringBuilder();
using (TextWriter wri...
UnboundLocalError on local variable when reassigned after first use
...
Here are two links that may help
1: docs.python.org/3.1/faq/programming.html?highlight=nonlocal#why-am-i-getting-an-unboundlocalerror-when-the-variable-has-a-value
2: docs.python.org/3.1/faq/programming.html?highlight=nonlocal#how-do-i-write-a-function-with-output-parameters-...
proper hibernate annotation for byte[]
I have an application using hibernate 3.1 and JPA annotations. It has a few objects with byte[] attributes (1k - 200k in size). It uses the JPA @Lob annotation, and hibernate 3.1 can read these just fine on all major databases -- it seems to hide the JDBC Blob vendor peculiarities (as it should do...
What do “branch”, “tag” and “trunk” mean in Subversion repositories?
...u start working in "trunk", on what will eventually be released as version 1.0.
trunk/ - development version, soon to be 1.0
branches/ - empty
Once 1.0.0 is finished, you branch trunk into a new "1.0" branch, and create a "1.0.0" tag. Now work on what will eventually be 1.1 continues in trunk. ...
App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...的简要规划)：
图10-2 程序流程规划
三、组件设计基础版（界面设计）
根据程序流程规划，创建一个比较简单的基础版“健身宝”应用程序，一般只需要用到以下七种组件。
1、标签（步数、距离、计时、位置）：一些标签用...