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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
浅谈APM在电子交易系统中的应用百度定义的APMAPM = Application Performance Management，应用性能管理，对企业系统即时监控以实现对应用程序性能管理和故障管理的系...百度定义的APM
APM = Application Performance Management，应用性能管理，...
Postfix发信的频率控制几个参数 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...失败的就放弃发送。postfix发信的频率控制有几个:
smtpd_client_connection_rate_limit=5
ip地址连接的频率控制.
smtpd_client_message_rate_limit=5
客户端发送邮件的频率控制.(某种情况下smtpd_client_message_rate_limit和 smtpd_client_connection_rate_limit的效...
When would anyone use a union? Is it a remnant from the C-only days?
I have learned but don't really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...
Capitalize first letter. MySQL
Does any one know the equivalent to this TSQL in MySQL parlance?
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How to get “wc -l” to print just the number of lines without file name?
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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... 语句With语句是什么？Python’s with statement provides a very convenient way of dealing with the situation where you
With语句是什么？
Python’s with statement provides a very convenient way of dealing with the situation where you have to do a setup and teardown to make s...
A weighted version of random.choice
I needed to write a weighted version of random.choice (each element in the list has a different probability for being selected). This is what I came up with:
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What characters can be used for up/down triangle (arrow without stem) for display in HTML?
I'm looking for a HTML or ASCII character which is a triangle pointing up or down so that I can use it as a toggle switch.
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How to check if a user is logged in (how to properly use user.is_authenticated)?
I am looking over this website but just can't seem to figure out how to do this as it's not working. I need to check if the current site user is logged in (authenticated), and am trying:
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Try catch statements in C
I was thinking today about the try/catch blocks existent in another languages. Googled for a while this but with no result. From what I know, there is not such a thing as try/catch in C. However, is there a way to "simulate" them?
Sure, there is assert and other tricks but nothing like try/catch, ...