大约有 24,971 项符合查询结果(耗时:0.0658秒) [XML]

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How to write a cron that will run a script every day at midnight?

I have heard crontab is a good choice, but how do I write the line and where do I put it on the server? 6 Answers ...
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Weak and strong property setter attributes in Objective-C

What is the difference between weak and strong property setter attributes in Objective-C? 5 Answers ...
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How can I generate a diff for a single file between two branches in github

I need to generate a diff for a single file that will show the differences between two versions, which are actually tags in github. I then want to send this diff to someone via email so a github URL for the diff would be ideal. The github compare view will allow me to do this for all changed files, ...
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How to specify maven's distributionManagement organisation wide?

I'm trying to figure out how to organize many (around 50+) maven2 projects, so that they can deploy into a central nexus repository. When using the mvn deploy goal, one does need to specify the target in the distributionManagement tag like this: ...
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Java FileReader encoding issue

I tried to use java.io.FileReader to read some text files and convert them into a string, but I found the result is wrongly encoded and not readable at all. ...
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Difference between this and self in JavaScript

Everyone is aware of this in javascript, but there are also instances of self encountered in the wild, such as here 5 ...
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Places where JavaBeans are used?

What is a JavaBean and why do I need it? Since I can create all apps with the class and interface structure? Why do I need beans? And can you give me some examples where beans are essential instead of classes and interfaces? ...
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John Carmack's Unusual Fast Inverse Square Root (Quake III)

John Carmack has a special function in the Quake III source code which calculates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why t...
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What guarantees are there on the run-time complexity (Big-O) of LINQ methods?

I've recently started using LINQ quite a bit, and I haven't really seen any mention of run-time complexity for any of the LINQ methods. Obviously, there are many factors at play here, so let's restrict the discussion to the plain IEnumerable LINQ-to-Objects provider. Further, let's assume that any...
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c语言编程中%g是什么格式? - C/C++ - 清泛网 - 专注C/C++及内核技术

c语言编程中%g是什么格式?%g用来输出实数,它根据数值的大小,自动选f格式或e格式(选择输出时占宽度较小的一种),且不输出无意义的0。即%g是根据结果自动选择科学...%g用来输出实数,它根据数值的大小,自动选f格式或e...