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云数据及Firebase组件简介 · App Inventor 2 中文网
...。 GetValue 获取标签并向 Firebase 服务请求存储的值。 所有安装了相同应用程序（apk 文件）的用户都将获得相同的存储值。
注意：当我们说“同一应用程序”时，我们指的是由同一开发人员创建的同名应用程序。 例如，如果您...
Detect iPad users using jQuery?
...ption is incorrect as iOS apps can and do customize their user agent. The main offender here is Facebook.
Compare these user agent strings from iOS devices:
# iOS Safari
iPad: Mozilla/5.0 (iPad; CPU OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.4...
How can I concatenate two arrays in Java?
...files where some of the facilities like those mentioned by Antti are not available.
– kvn
Feb 7 '11 at 15:46
4
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为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...，对于iOS设备需要使用swift开发iOS版本的拓展。环境配置安装好 Java开发环境 以及 Ant编译环境，这里以Windows为例，供参考：安装完JDK后配置环境变量 计算机（右键）→属性→高级系统设置→高级→环境变量新建JAVA_HOME:如果是默...
浅谈APM在电子交易系统中的应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...识别错误。这有别于传统的 APM方法，传统方法通常使用安装在应用服务器的代理，从IT环境选定的几个点（包括局域网、广域网和任何相关数据库）获取性能指标样本，以确定哪里的传 统应用出现了问题。
虽然从其优势来看，...
How to find the kth largest element in an unsorted array of length n in O(n)?
... i)
If i > k, return Select(G, n-k, i-k)
It's also very nicely detailed in the Introduction to Algorithms book by Cormen et al.
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windows下捕获dump之Google breakpad_client的理解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...二次开发，使用的是进程内dump，没发现有问题。现在我安装的chrome浏览器，没发现有crash_server进程，估计要么是没抓dump，要么是进程内dump，我看到有文章说有一个GoogleCrashHandler.exe进程，但我这里没有发现，可能是后来修改掉...
Multiprocessing: How to use Pool.map on a function defined in a class?
...or p in proc]
return [p.recv() for (p, c) in pipe]
if __name__ == '__main__':
print parmap(lambda x: x**x, range(1, 5))
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Defeating a Poker Bot
...
classify rogue cheating or robotic
players.
Back when online poker was a fairly
new entity, there was rumour and talk with limited evidence that
some poker client software
screen-shots of suspicious players
desktops to see if they were running
programs that assist them. However (even if this were ...
What algorithms compute directions from point A to point B on a map?
...tion, you can have several layers of map data: A 'highways' layer that contains only highways, a 'secondary' layer that contains only secondary streets, and so forth. Then, you explore only smaller sections of the more detailed layers, expanding as necessary. Obviously this description leaves out a ...