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if statement - How to use if - else structure in a batch file?

I have a question about if - else structure in a batch file. Each command runs individually, but I couldn't ... /s /q "%sourceMoveDirectory%" ) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python numpy machine epsilon

I am trying to understand what is machine epsilon. According to the Wikipedia, it can be calculated as follows ... with modifying the function? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Saving plots (AxesSubPlot) generated from python pandas with matplotlib's savefig

I'm using pandas to generate a plot from a dataframe, which I would like to save to a file: dtf = pd. ... ).get_figure().savefig('output.png') See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Laravel Fluent Query Builder Join with subquery

Okay after hours of research and still using DB::select I have to ask this question. Because I am about to trough ... who can light up my day? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Is it pythonic for a function to return multiple values?

In python, you can have a function return multiple values. Here's a contrived example: def divide(x, y): ... line and define a different method? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to open file using argparse?

I want to open file for reading using argparse. In cmd it must look like: my_program.py /filepath That's my ... file) args = parser.parse_args() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - not implementing all of the methods of interface. is it possible?

Is there any way to NOT implement all of the methods of an interface in an inheriting class? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Serialize Property as Xml Attribute in Element

I have the following class: [Serializable] public class SomeModel { [XmlElement("SomeStringElementName")] public ... custom serialization code? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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WPF C#: Rearrange items in listbox via drag and drop

I am trying to figure out how to move the items in a pre-populated listbox up and down via mouse drags ... to the visual studios environment. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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docker - How to run kubectl commands inside a container?

In a container inside a pod, how can I run a command using kubectl? For example, if i need to do something like ... is it that I need to do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - How to deal with LinkageErrors in Java?

Developing a heavily XML-based Java-application, I recently encountered an interesting problem on Ubuntu Linux. My ... core of the issue? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Tomcat Guice/JDBC Memory Leak

I'm experiencing a memory leak due to orphaned threads in Tomcat. Particularly, it seems that Guice and the ... Any help would be appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to implement "mustMatch" and "selectFirst" in jQuery UI Autocomplete?

I recently migrated a few of my Autocomplete plugins from the one produced by bassistance to the jQuery UI ... core autocomplete code itself? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to add programmatically a custom account in android?

I am trying to create an account for my app, where I will be able to have my contacts against ... (account, password, null); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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xml - SVG rounded corner

I have the following SVG: <svg> <g> <path id="k9ffd8001" d="M64.5 45.5 82.5 45.5 82.5 64.5 64.5 64.5 ... ="url(#k9ffb0001)"></path> </g> </svg> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I modify the PATH environment variable when running an Inno Setup Installer?

Inno Setup lets you set environment variables via the [Registry] sections (by setting registry key which ... variable from within InnoSetup? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Run Android studio emulator on AMD processor

Android newbie. My processor is AMD, not Intel, so I can't open the emulator in Android studio. This ... Android Studio emulator and AMD CPU See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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class - Python super method and calling alternatives

I see everywhere examples that super-class methods should be called by: super(SuperClass, instance).method(args) ... .method(instance, args) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - What is the difference between Objective-C automatic reference counting and garbage collection?

With the new automatic reference counting (ARC) introduced in Xcode 4.2, we no longer need to manually ... ARC differ from garbage collection? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Which loop has better performance? Why?

String s = ""; for(i=0;i<....){ s = some Assignment; } or for(i=0;i<..){ String s = ... memory management. Just want to know which is better. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Returning http 200 OK with error within response body

I'm wondering if it is correct to return HTTP 200 OK when an error occurred on the server side (the error ... code to something else than 200? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Are parentheses around the result significant in a return statement?

Is there a difference between these two statements inside a function? bool returnValue = true; // Code ... has parentheses around returnValue. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - How to force SSL / https in Express.js

I am trying to create a middleware for Express.js to redirect all non-secure (port 80) traffic to the secured ... . How would you solve that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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tkinter - How to bundle a Python application including dependencies?

I need to package my Python application, its dependencies and Python into a single MSI installer. The end ... executable is not required See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python spacing and aligning strings

I am trying to add spacing to align text in between two strings vars without using " " to do so Trying to ... but to no avail. Suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How does the custom deleter of std::unique_ptr work?

According to N3290, std::unique_ptr accepts a deleter argument in its constructor. However, I can't get that to work ... it's supposed to do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How do you convert a PIL `Image` to a Django `File`?

I'm trying to convert an UploadedFile to a PIL Image object to thumbnail it, and then convert the PIL Image object ... . How can I do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Detect Language of NSString

Somebody told me about a class for language recognition in Cocoa. Does anybody know which one it is? This is not ... ' but should be 'de'. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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