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App Inventor 2 手势识别扩展教程 - GestureDetector · App Inventor 2 中文网
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导入扩展
下载 GestureDetector扩展(.aix文件)
Designer → Extension → Import Extension → 选择.aix
核心事件
when GestureDetector1.DoubleTapAtPoint(X, Y) {
// 双击触发
标签_状态.Text = join("双击 @ ", X, ",", Y...
Plyr视频播放器拓展:全屏、画质、字幕、缩略图、强大的用户界面 · App In...
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功能
支持缩略图
支持直播
支持 M3U8 文件
支持多种字幕
支持多种视频质量
支持缓存
流畅的视频加载
响应式设计
支持本地文件
离线工作
还有更多功能即将推出。
属性
Capti...
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
版本历史
版本
日期
修改内容
1.0
20...
Non-alphanumeric list order from os.listdir()
...o sorted(os.listdir(path))
and for the case of like 'run01.txt' or 'run01.csv' you can do like this
sorted(files, key=lambda x : int(os.path.splitext(x)[0]))
share
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improve this answer
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ImageUtil 扩展:图像工具扩展,提供图像处理和变换功能 · App Inventor 2 中文网
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从指定路径创建图像。
路径:文本类型,图像文件路径
返回值:组件类型,创建的图像组件
HFlip 水平翻转(组件)
水平翻转图像。
组件:组件类型,要翻转的图像组件
VFlip 垂直翻...
How to recursively delete an entire directory with PowerShell 2.0?
...ons/199921/powershell-remove-force Maybe better get-childitem * -include *.csv -recurse | remove-item I don't know. See stackoverflow.com/a/1668471/206730
– Kiquenet
Apr 30 '13 at 6:48
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Getting A File's Mime Type In Java
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It doesn't work for csv. wtf?stackoverflow.com/questions/46960231/…
– gstackoverflow
Oct 26 '17 at 17:24
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How can I parse a YAML file in Python
...lue
the answer: 42
Common file endings
.yml and .yaml
Alternatives
CSV: Super simple format (read & write)
JSON: Nice for writing human-readable data; VERY commonly used (read & write)
YAML: YAML is a superset of JSON, but easier to read (read & write, comparison of JSON and YAML...
Debugging Package Manager Console Update-Database Seed Method
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How to convert comma-separated String to List?
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Here is another one for converting CSV to ArrayList:
String str="string,with,comma";
ArrayList aList= new ArrayList(Arrays.asList(str.split(",")));
for(int i=0;i<aList.size();i++)
{
System.out.println(" -->"+aList.get(i));
}
Prints you
-->...
