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ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...我们将 WEB 代码部署到集群上的时候，如果需要实时的将最新的配置信息，主动的推送到各个机器节点。在此过程中，我们一定要保证，各个节点收到的信息的一致性和正确性，如果使用 HTTP，由于他的无状态性，我们无法保证...
Given a DateTime object, how do I get an ISO 8601 date in string format?
...ike this: DateTime.UtcNow.ToString(c, CultureInfo.InvariantCulture)) => 2012-06-26T11:55:36 and there's no millisecond resolution that is very nice to have since computers do a fair number of ticks per second.
– Henrik
Jun 26 '12 at 12:05
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Converting between datetime, Timestamp and datetime64
...s np
>>> dt = datetime.utcnow()
>>> dt
datetime.datetime(2012, 12, 4, 19, 51, 25, 362455)
>>> dt64 = np.datetime64(dt)
>>> ts = (dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's')
>>> ts
1354650685.3624549
>>> datetime.utcfrom...
What is the maximum value for an int32?
...is more memorable than just a load of numbers: channel4.com/entertainment/tv/microsites/M/mindcontrol/remember/…
– Luke Bennett
Sep 18 '08 at 22:02
19
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Does HTTP use UDP?
...itted over TCP. I implemented HTTP on top of UDP, for use in the Satellite TV Broadcasting industry.
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Get the correct week number of a given date
...lot of solutions, but none of them give me the correct week number for the 2012-12-31. Even the example on MSDN ( link ) fails.
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
How to detect if Visual C++ Redistributable for Visual Studio 2012 is installed?
20 Answers
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What is this 'Waiting for Background operation' in Visual Studio 2012?
Occassionaly, but fairly often, for no apparent reason, VS 2012 will lock up with a dialogue that says, "Waiting for a background operation to finish". E.g. this may happen during a plain old code edit, not on explicitly invoking any IDE command.
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Function to Calculate Median in SQL Server
...yield better results. Also, SQL Server releases since then (especially SQL 2012) have introduced new T-SQL features that can be used to calculate medians. SQL Server releases have also improved its query optimizer which may affect perf of various median solutions. Net-net, my original 2009 post is s...
How to quickly open a file in Visual Studio 2012
I am trying VS2012 RC but find one good feature no available any more (or if it still is, please let me know): in VS2010, if I know a file name, for example, MyFile.cs , I can quickly open it by typing Ctrl + D (or whatever shortcut assigned) to go to Find tool, and then type >of myfile.cs , ...