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sockets - Can two applications listen to the same port?

Can two applications on the same machine bind to the same port and IP address? Taking it a step further, can ... that have nothing in common do the same? Question&Answers:os...

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github - Git commands that could break/rewrite the history

Can you provide a list of (all, or the most common) the operations or commands that can compromise the ... contributors copies). Can git reset be dangerous? Question&Answers:os...

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

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pid - How can a Java program get its own process ID?

How do I get the id of my Java process? I know there are several platform-dependent hacks, but I would prefer a more generic solution. Question&Answers:os...

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windows - How can I auto-elevate my batch file, so that it requests from UAC administrator rights if required?

I want my batch file to only run elevated. If not elevated, provide an option for the user to relaunch ... deals with relaunching a batch file as elevated. Question&Answers:os...

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python - PATH issue with pytest 'ImportError: No module named YadaYadaYada'

I used easy_install to install pytest on a mac and started writing tests for a project with a file structure ... on these systems? Has Anyone experienced this? Question&Answers:os...

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asp.net - Response.Redirect with POST instead of Get?

We have the requirement to take a form submission and save some data, then redirect the user to a page offsite, ... . Anyway, thanks for any and all responses. Question&Answers:os...

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Base64 encoding and decoding in client-side Javascript

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

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sockets - What does "connection reset by peer" mean?

What is the meaning of the "connection reset by peer" error on a TCP connection? Is it a fatal error or just a notification or related to the network failure? Question&Answers:os...

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

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Browsers' default CSS for HTML elements

Where can I find a browser's default CSS for HTML elements? Many HTML elements come with some default CSS ... me all this information (or perhaps most)? Question&Answers:os...

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ssl - Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

I have a class that will download a file from a https server. When I run it, it returns ... .SSLHandshakeException: General SSLEngine problem Shutting down Done Question&Answers:os...

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

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Simplest way to read JSON from a URL in Java

This might be a dumb question but what is the simplest way to read and parse JSON from URL in Java? In Groovy, it ... to do is to read the content of this link. Question&Answers:os...

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

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How to force maven update?

I imported my already working project on another computer and it started to download dependencies. Apparently my internet ... How do I force maven to update? Question&Answers:os...

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python - Timeout function if it takes too long to finish

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

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python - Difference between text and innerHTML using Selenium

Whats the difference between getting text and innerHTML when using selenium. Even though we have text under ... .get_attribute("innerHTML")' over .text? Question&Answers:os...

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

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git - How to do a GitHub pull request

How do I create and/or send a pull request to another repository hosted on GitHub? Question&Answers:os...

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

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Java Security: Illegal key size or default parameters?

I had asked a question about this earlier, but it didn't get answered right and led nowhere. So I've clarified ... first one. * The previous question is here. Question&Answers:os...

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

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c# - Add n rectangles to canvas with MVVM in WPF

I want to add a set of rectangles to the main window of my mvvm application. In my viewModel I've got a collection ... a way how I can achieve this? Tank you. Question&Answers:os...

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windows installer - Why is it a good idea to limit the use of custom actions in my WiX / MSI setups?

Why is it a good idea to limit the use of custom actions in my WiX / MSI setups? Deployment is a crucial ... design flaws in my WiX / MSI deployment solution?. Question&Answers:os...

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

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What exactly does git's "rebase --preserve-merges" do (and why?)

Git's documentation for the rebase command is quite brief: --preserve-merges Instead of ignoring merges, try to recreate ... it mean to "recreate" a merge, etc. Question&Answers:os...

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

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c# - string.Replace (or other string modification) not working

For the following code, I can't get the string.Replace to work: someTestString.Replace(someID.ToString ... remains unchanged after hitting my code. Question&Answers:os...

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

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bash - How do I prompt for Yes/No/Cancel input in a Linux shell script?

I want to pause input in a shell script, and prompt the user for choices. The standard Yes, No, or Cancel ... do I accomplish this in a typical bash prompt? Question&Answers:os...

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

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How do you run multiple programs in parallel from a bash script?

I am trying to write a .sh file that runs many programs simultaneously I tried this prog1 prog2 But that runs prog1 ... .. So how can I run them in parallel? Question&Answers:os...

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

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Remove duplicates from a List<T> in C#

Anyone have a quick method for de-duplicating a generic List in C#? Question&Answers:os...

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

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python - About the changing id of an immutable string

Something about the id of objects of type str (in python 2.7) puzzles me. The str type is immutable, so I ... id('hello') 139978087896384 Now it is equal... Question&Answers:os...

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

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How can I unset a JavaScript variable?

I have a global variable in JavaScript (actually a window property, but I don't think it matters) which was already ... way to go about it. What do you think? Question&Answers:os...

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

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How can I check file size in Python?

I am writing a Python script in Windows. I want to do something based on the file size. For example, if the ... other things. How do I check the file size? Question&Answers:os...

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

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javascript - Is it not possible to stringify an Error using JSON.stringify?

Reproducing the problem I'm running into an issue when trying to pass error messages around using web sockets ... answer provides a workaround for this problem. Question&Answers:os...

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

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html - Using relative URL in CSS file, what location is it relative to?

When defining something like a background image URL in a CSS file, when using a relative URL, where is it ... index.html /about/extra/other.html /index.html Question&Answers:os...

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

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