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在app inventor中如果需要退出应用，需要调用哪句代码？ - App Inventor 2 ...
调用控制代码块中的“退出程序”代码块：
退出程序关闭应用程序。
注：只有在编译apk真机运行时，才能退出App，AI伴侣测试的时候无法退出AI伴侣程序。
【解答】网络故障：与AI伴侣通信故障 - App Inventor 2 中文网 - 清泛IT社...
...里做一个解答：
出现此弹窗是因为App Inventor 2服务器端无法连接到AI伴侣导致的，原因是因为手机上退出了AI伴侣App或者手机锁屏了，都可能导致通信断开。
解决：重来一次测试
1、手机退出AI伴侣后，重启启动
2、网页：连...
Appinventor 音效调用播放后没有声音？ - App应用开发 - 清泛IT社区，为创新赋能！
...掉即可。
当然如果因为音频文件损坏等原因，也可能无法正常播放，这时可以先去资源区，点击隐私文件，菜单中选择预览，可以预览播放，事先检查好确保音频文件没有问题。
How does Google calculate my location on a desktop?
...onflicting info (namely, the specific info about my wifi router against my ip geolocation, which pinpoints me in the far east).
So, to answer your question, google, or someone for him, did "wardriving" around, mapping the wifi presence. Every time a query is performed to the system (probably in com...
How do I prevent site scraping? [closed]
...t, you'll need to head to GitHub to read the extended version, with more tips and details.
In order to hinder scraping (also known as Webscraping, Screenscraping, Web data mining, Web harvesting, or Web data extraction), it helps to know how these scrapers work, and
, by extension, what prevent...
Remote JMX connection
...oking the program with the system parameter java.rmi.server.hostname="YOUR_IP", either as an environment variable or using
java -Djava.rmi.server.hostname=YOUR_IP YOUR_APP
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how to find host name from IP with out login to the host
i need to find the host name of a UNIX host whose IP is known with out login to that UNIX host
11 Answers
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What are named pipes?
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Both on Windows and POSIX systems, named-pipes provide a way for inter-process communication to occur among processes running on the same machine. What named pipes give you is a way to send your data without having the performance penalty of involving the network st...
Predicate Delegates in C#
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@Andrew Hare: in your first code snippet, should that be yeild return instead? Or how does that work, how does it iterate over the whole list?
– VoodooChild
Sep 26 '11 at 16:42
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What is the largest TCP/IP network port number allowable for IPv4?
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@JessieArr Most IP stacks use a tuple of Source IP address, Source port, Destination IP address and Destination port as a unique identifier for connections. This means that a server can have many many more active connections than there are a...