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- App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...、写入和通知功能，以简化 BLE 固件开发工作。您还可以实时查看信号强度 (RSSI)，了解您与 BLE 设备的距离，方便您查找丢失的 Fitbit 或其他 BLE 设备！日志功能允许您……
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【天气API】对接国内免费好用的天气API - App应用开发 - 清泛IT社区，为创新赋能！
...地图天气 API 免费版可用资源
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打开并注册高...
2026 新年第一篇：即将全面支持苹果iOS App编译生成，纯血鸿蒙计划中，编译...
...结（适合归纳）当前状态（2025 / 2026）Android 扩展仍然是实时加载的 Java 扩展体系；iOS 目前不支持扩展机制，尤其不能动态加载 Android 扩展；Apple 审核对未经审核代码的限制是导致这个机制不能工作的根本原因。MIT App Inventor Commu...
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...