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App Inventor 2 TaifunImage 拓展，图像高级处理功能，剪裁，压缩，翻转等 ...
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TaifunImage 拓展
.aix 拓展下载：
com.puravidaapps.TaifunImage.aix
demo程序下载：
下载Resize测试项目(aia文件)
下载Create Chunks测试项目(aia文件)
下载Crop测试项目(aia文件)
下载Rotate...
Calculating moving average
...comment from @Ricardo Cruz:
cx <- c(0, cumsum(ifelse(is.na(x), 0, x)))
cn <- c(0, cumsum(ifelse(is.na(x), 0, 1)))
rx <- cx[(n+1):length(cx)] - cx[1:(length(cx) - n)]
rn <- cn[(n+1):length(cx)] - cn[1:(length(cx) - n)]
rsum <- rx / rn
This still has the issue that if all the values ...
Break a previous commit into multiple commits
...was farther back in the tree than you want to count, then
$ git rebase -i 123abcd~
where 123abcd is the SHA1 of the commit you want to split up.
If you are on a different branch (e.g., a feature branch) that you plan to merge into master:
$ git rebase -i master
When you get the rebase edit sc...
Get operating system info
...y('plan9', 'Plan9');
$ros[] = array('osf', 'OSF');
$ros[] = array('aix', 'AIX');
$ros[] = array('GNU Hurd', 'GNU Hurd');
$ros[] = array('(fedora)', 'Linux - Fedora');
$ros[] = array('(kubuntu)', 'Linux - Kubuntu');
$ros[] = array('(ubuntu)', 'Linux - Ubuntu');
$ros[] = ar...
Strangest language feature
...
Fun with auto boxing and the integer cache in Java:
Integer foo = 1000;
Integer bar = 1000;
foo <= bar; // true
foo >= bar; // true
foo == bar; // false
//However, if the values of foo and bar are between 127 and -12...
Python - abs vs fabs
...
@aix Any user defined class that defines the __abs__ magic method
– agf
May 27 '12 at 17:59
add a com...
ContinuousSpeech 连续语音识别扩展：持续语音识别无需重复启动 · App Inventor 2 中文网
...持：支持设置不同的识别语言
下载
.aix拓展文件：
de.ullisroboterseite.ursai2continuousspeech.aix
.aia示例文件：
ContSpeechTest.aia
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1.0...
keytool error :java.io.IoException:Incorrect AVA format
...PatrickTaylor -validity 10000
-keystore C:\drops\patrickkeystore
-dname "cn=Patrick Taylor, ou=engineering, o=company, c=US"
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RadioButton单选按钮扩展集合 · App Inventor 2 中文网
...载和安装
UrsAI2RadioButton扩展: UrsAI2RadioButton.aix
示例应用: RadioButtonExample.aia
功能概述
UrsAI2RadioButton扩展将CheckBox组件转换为RadioButton组件，提供真正的单选功能：
将CheckBox转换为RadioButton外观
...
ComponentGroup 组件组扩展：监控内容变化和批量启用禁用组件 · App Inventor 2 中文网
...mailPicker
邮箱选择器
下载
.aix拓展文件：
de.UllisRoboterSeite.UrsAI2ComponentGroup.aix
.aia示例文件：
UrsComponentGroupTest.aia
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