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c++ - What does {0} mean when initializing an object?

When {0} is used to initialize an object, what does it mean? I can't find any references to {0} anywhere ... above code will crash on runtime. See Question&Answers more detail:os...

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

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shell - How to ssh to vagrant without actually running "vagrant ssh"?

I would like to reproduce the way Vagrant logs in to my VM within a shell script using an ssh command, so ... regular ssh command to access it? 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 kernel - Context switch internals

I want to learn and fill gaps in my knowledge with the help of this question. So, a user is running a ... each kernel-thread or each process? See Question&Answers more detail:os...

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

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Android, How to limit width of TextView (and add three dots at the end of text)?

I have a TextView that I want to limit characters of it. Actually, I can do this but the thing that I'm ... .black" android:ellipsize="end"/> 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 - Can I run Keras model on gpu?

I'm running a Keras model, with a submission deadline of 36 hours, if I train my model on the ... Jupyter notebook, without anaconda installed. 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 - Fixing Xcode 9 issue: "iPhone is busy: Preparing debugger support for iPhone"

I'm looking for more information on the message below. Xcode 9 seems to be hanging for a couple minutes already. ... .Alex's iPhone is finished. See Question&Answers more detail:os...

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

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javascript - jQuery: Check if div with certain class name exists

Using jQuery I'm programmatically generating a bunch of div's like this: <div class="mydivclass" id="myid1"> ... to detect them using jQuery? See Question&Answers more detail:os...

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

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xcode - I get conflicting provisioning settings error when I try to archive to submit an iOS app

Now I'm trying to Product>Archive my iOS app to submit. However, I am getting following errors: AppName has ... My XCode version is 8.1. See Question&Answers more detail:os...

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

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build - Prevent unit tests but allow integration tests in Maven

I've a Maven build in which I use the SureFire plugin to run some unit tests, and the FailSafe plugin ... with the functionality of "onlyITs"? See Question&Answers more detail:os...

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

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.net - What is the string length of a GUID?

I want to create a varchar column in SQL that should contain N'guid' while guid is a generated GUID by . ... just asking what is Guid.MaxLength. 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 upgrade Git to latest version on macOS?

I just bought a new Mac with OS X Lion and I checked in the Terminal what version of git is installed by default. ... .4. What am I doing wrong? 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# - What is the difference between Xamarin.Form's LayoutOptions, especially Fill and Expand?

In Xamarin.Forms every View has the two properties HorizontalOptions and VerticalOptions. Both are of type LayoutOptions ... the suffix Expand? See Question&Answers more detail:os...

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

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mercurial - Using Git how do I find changes between local and remote

Here are two different questions but I think they are related. When using Git, how do I find which changes I ... the changes I want to pull? See Question&Answers more detail:os...

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

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asp.net - Can I incorporate both SignalR and a RESTful API?

I have a single page web app developed using ASP.NET. I recently converted many of the web methods to be ... the most elegant way forward here? See Question&Answers more detail:os...

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

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Multiple Table SQLite DB Adapter(s) in Android?

I was reading the Android SQLite NotePad tutorial that referenced creating a DB Adapter class to create and ... individual adapters per table? See Question&Answers more detail:os...

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

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Is there a way to follow redirects with command line cURL?

I know that in a php script: curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); will follow redirects. Is there a ... with command line cURL? 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 show the schema of a table in a MySQL database?

From the MySQL console, what command displays the schema of any given table? 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 - Matplotlib tight_layout() doesn't take into account figure suptitle

If I add a subtitle to my matplotlib figure it gets overlaid by the subplot's titles. Does anybody know how ... plt.tight_layout() plt.show() See Question&Answers more detail:os...

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

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debugging - How do you use the Immediate Window in Visual Studio?

The Immediate Window is an immensely useful tool for debugging applications. It can be used to execute code ... use the Immediate Window? 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 annotations like @Override work internally in Java?

Can anybody explain to me how annotations work internally in java? I know how we can create custom annotations ... explain that in detail. 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 - Where can one find the C89/C90 standards in PDF format?

I'm looking for a free copy version of the C89/C90 standard, but I can't find it anywhere! Why is so ... helped either, nor did Open Standards. 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++ - std::function and std::bind: what are they, and when should they be used?

I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup ... give some examples for newbies? See Question&Answers more detail:os...

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

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LaTeX package for syntax highlighting of code in various languages

I am looking for a LaTeX package that does syntax highlighting on code. For example, right now I use the verbatim ... HTML, CSS and so on. See Question&Answers more detail:os...

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

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php - How to run single test method with phpunit?

I am struggling to run a single test method named testSaveAndDrop in the file escalation/EscalationGroupTest.php with phpunit. ... is 3.2.8. See Question&Answers more detail:os...

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

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throwing an exception in objective-c/cocoa

What's the best way to throw an exception in objective-c/cocoa? See Question&Answers more detail:os...

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

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328 views

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node.js - Why use peer dependencies in npm for plugins?

Why does, for example, a Grunt plugin define its dependency on grunt as "peer dependencies"? Why can't the ... (or whatever) are avoided? See Question&Answers more detail:os...

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

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What are the rules for casting pointers in C?

K&R doesn't go over it, but they use it. I tried seeing how it'd work by writing an example program, but it ... I call the program). Any ideas? See Question&Answers more detail:os...

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

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objective c - When should I use @synthesize explicitly?

As far as I know, since XCode 4.4 the @synthesize will auto-generate the property accessors. But just now ... @synthesize explicitly to my 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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