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How to make rounded percentages add up to 100%
...
The goal of rounding is to generate the least amount of error. When you're rounding a single value, that process is simple and straightforward and most people understand it easily. When you're rounding multiple numbers at the same time, the process gets trickier - you must define ...
Drawing Isometric game worlds
...loop with fairly straight forward logic that works consistently throughout all tiles.
Disadvantage:
One downside to that approach is that the x and y coordinates of the tiles on the map will increase in diagonal lines, which might make it more difficult to visually map the location on the screen t...
How can I pass a list as a command-line argument with argparse?
...you can expect:
$ python arg.py --default 1234 2345 3456 4567
...
arg.py: error: unrecognized arguments: 2345 3456 4567
$ python arg.py --list-type 1234 2345 3456 4567
...
arg.py: error: unrecognized arguments: 2345 3456 4567
$ # Quotes won't help here...
$ python arg.py --list-type "1234 2345 3...
kill -3 to get java thread dump
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If you're seeing that error, I suggest taking it up with your vendor. A quick search shows, for example, there is an open bug in RHEL regarding this error and openjdk...
– Joshua McKinnon
Nov 4 '13 at 19:46
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FloatingActionButton 扩展：悬浮操作按钮扩展，可自定义颜色、大小、位置...
...操作按钮
4. 滚动时隐藏/显示
5. 临时操作提示
6. 动态按钮组
使用说明
基本使用步骤
重要提示
最佳实践
技术说明
尺寸规范
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How to validate an e-mail address in swift?
...2) the regex (even within the context of what it's trying to do) has major errors (3) the Swift is wrong (4) even setting that aside, the style is totally wrong (5) not that it matters given all the rest but it doesn't even mention that you have to cache the predicate ... humorously, (6) there's st...
How to check if a symlink exists
...ou can do all these tests and
get an exit status whose value indicates the error condition.
if [ ! \( -e "${file}" \) ]
then
echo "%ERROR: file ${file} does not exist!" >&2
exit 1
elif [ ! \( -f "${file}" \) ]
then
echo "%ERROR: ${file} is not a file!" >&2
exit 2
e...
如何抓住痛点做出让用户尖叫的产品 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...一聊天窗口，选择“+”号发送其他内容时，微信默认会提示你是否要发送刚刚截取的那张图片，此时可以选这图片，也可以继续选择发送表情、位置等其他内容，几秒后不选择，提示就会消失，整体上不影响操作流程，却在体...
How to search a specific value in all tables (PostgreSQL)?
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ERROR: syntax error at or near "default" LINE 3: haystack_tables name[] default '{}' (Using PostgreSQL 8.2.17 and cannot upgrade)
– Henno
May 11 '14 at 8:54
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tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...逐渐成为了业界关注之一。
目标
提高单台机器的新建连接并发能力， 减少访问延时， 提高网络带宽利用率。
单边加速
需要明确的是，本文的目标是tcp加速，目标场景是web server， 而不是路由设备
在峰值带宽的情况下，网...