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Why does the is operator return false when given null?
It seems to me that the is operator is a bit inconsistent.
7 Answers
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...协议
第一种方法
说明：两个防火墙属于不同品牌HA 等技术想都不用想了，想通过VRRP实现主备切换， juniper 我只发现了NSRP 的选项 Astarto 根本就木有这个选项
看来两个不同品牌的防火墙想组成高可靠性集群不大可能...
Return two and more values from a method
Is there any possibility to return multiple values from method? Something like this:
4 Answers
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...被包含在主窗口之下。在主窗口内的标题为LINGO Model – LINGO1的窗口是LINGO的默认模型窗口，建立的模型都都要在该窗口内编码实现。下面举两个例子。
例1.1 如何在LINGO中求解如下的LP问题：
在模型窗口中输入如下代码：
m...
Dependent DLL is not getting copied to the build output folder in Visual Studio
I have a visual studio solution.
I have many projects in the solution.
There is one main project which acts as the start up and uses other projects.
There is one project say "ProjectX". Its reference is added to main project.
The ProjectX references another .NET dll (say abc.dll) that isn't part of ...
Adding a y-axis label to secondary y-axis in matplotlib
I can add a y label to the left y-axis using plt.ylabel , but how can I add it to the secondary y-axis?
3 Answers
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Image width/height as an attribute or in CSS? [duplicate]
What's the "correct" semantic way to specify image height and width? In CSS...
12 Answers
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What does java.lang.Thread.interrupt() do?
Could you explain what java.lang.Thread.interrupt() does when invoked?
9 Answers
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How much is too much with C++11 auto keyword?
I've been using the new auto keyword available in the C++11 standard for complicated templated types which is what I believe it was designed for. But I'm also using it for things like:
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Fast way to get image dimensions (not filesize)
I'm looking for a fast way to get the height and width of an image in pixels. It should handle at least JPG, PNG and TIFF, but the more the better. I emphasize fast because my images are quite big (up to 250 MB) and it takes soooo long to get the size with ImageMagick's identify because it obv...