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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...接，展示了当您移动手机时应用程序如何制作全景动画：https://youtu.be/Ps3lchduJlI
我们甚至可以看到您最喜欢的故事书中的英雄。很漂亮，对吧？以下是 Google Cardboard 的全景图截图：
运行 Expeditions 演示
要在手机上运行 Expediti...
重构理论及实践——用工厂模式重构c++后台代码 - C/C++ - 清泛网 - 专注C/C...
...源码。（你问wetest是嘛？WeTest腾讯质量开放平台（wetest.qq.com)，是将鹅厂沉淀十余年、历经千款游戏锤炼的优秀测试方案和工具开放给广大游戏开发者的开放测试平台。其中的压力测试工具更是打出了如此口号——“x万8，x万8，...
How to use the pass statement?
...se you are designing a new class with some methods that you don't want to implement, yet.
class MyClass(object):
def meth_a(self):
pass
def meth_b(self):
print "I'm meth_b"
If you were to leave out the pass, the code wouldn't run.
You would then get an:
IndentationError...
How to remove/delete a large file from commit history in Git repository?
...
(The best answer I've seen to this problem is: https://stackoverflow.com/a/42544963/714112 , copied here since this thread appears high in Google search rankings but that other one doesn't)
???? A blazingly fast shell one-liner ????
This shell script displays all blob o...
What is the best way to detect a mobile device?
...e detection and/or media queries.
Instead of using jQuery you can use simple JavaScript to detect it:
if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {
// some code..
}
Or you can combine them both to make it more accessible through jQuery...
...
数据存储组件 · App Inventor 2 中文网
...，详细可以去各自的网站上查看中文文档。网站如下：
https://tinywebdb.cn/
https://tinywebdb.appinventor.space/ 经过测试，单个键值的大小不可超过9000字节，否则可能保存失败。
属性
服务地址
指定Web服务的 URL，默认值是 http://tin...
Adding custom radio buttons in android
I have a simple android radio button below
10 Answers
10
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多媒体组件 · App Inventor 2 中文网
...来控制视频播放器的行为。
视频文件应为 3GPP (.3gp) 或 MPEG-4 (.mp4) 格式。更多详细信息格式，见 Android 支持的媒体格式。
App Inventor 只允许 1 MB 以下的视频文件，并将应用程序的总大小限制为 5 MB，并非所有文件都可用于媒体（...
Regular expression to match DNS hostname or IP Address?
...
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edited Oct 31 '12 at 13:57
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How do I record audio on iPhone with AVAudioRecorder?
...nt to use AVAudioRecorder and not the older way of recording like the example SpeakHere shows. There are not any examples of how to best do this in the iPhone Dev Center and only reference to the classes. I am a newbie at iPhone development, so I am looking for a simple sample to get me started...