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What does "rep; nop;" mean in x86 assembly? Is it the same as the "pause" instruction?

What does rep; nop mean? Is it the same as pause instruction? Is it the same as rep nop (without the semi ... in BeRTOS, with the same comment. See Question&Answers more detail:os...

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html - Exclude menu item from the collapse of bootstrap 3 navbar

Here's what I have, I've tried moving around my section inside the "brand" and do a pull-right, outside the brand ... </div> </nav> </header> See Question&Answers more detail:os...

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How to add a Not Equal To rule in jQuery.validation

I was wondering how to make it so that I could make a rule where a field is not equal to a value. Like I ... to do this? thanks for any help. See Question&Answers more detail:os...

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How to render Android's YUV-NV21 camera image on the background in libgdx with OpenGLES 2.0 in real-time?

Unlike Android, I'm relatively new to GL/libgdx. The task I need to solve, namely rendering the Android camera' ... and as fast as possible? See Question&Answers more detail:os...

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amazon web services - AWS ECS Error when running task: No Container Instances were found in your cluster

Im trying to deploy a docker container image to AWS using ECS, but the EC2 instance is not being created. I ... EC2 instances to begin with!! See Question&Answers more detail:os...

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java - How to ignore PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException?

I got the following exception when try to post a request to a http server: Here is the code I used URL url ... a way to ignore this exception? See Question&Answers more detail:os...

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r - How to save data file into .RData?

I want to save data into an .RData file. For instance, I'd like to save into 1.RData with two csv files ... of RData with csv files and values? See Question&Answers more detail:os...

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c++ - Should I pass an std::function by const-reference?

Let's say I have a function which takes an std::function: void callFunction(std::function<void()> x) { ... ::function into a member variable. See Question&Answers more detail:os...

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oop - What is composition as it relates to object oriented design?

I hear (and read on this site) a lot about "favour composition over inheritance". But what is Compositon? I ... . Can somebody fill me in? See Question&Answers more detail:os...

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SQL Server SELECT LAST N Rows

This is a known question but the best solution I've found is something like: SELECT TOP N * FROM ... Sorry duplicated question of this one See Question&Answers more detail:os...

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

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Two ways of defining functions in Scala. What is the difference?

Here is a little Scala session that defines and tries out some functions: scala> def test1(str: String) = ... function, and a valed function? See Question&Answers more detail:os...

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Adding lib to 'config.autoload_paths' in Rails 3 does not autoload my module

I place a file name g.rb in side Rails.root/lib folder The file content is like this: module Google ... without any extra require statement? See Question&Answers more detail:os...

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authentication - Keycloak retrieve custom attributes to KeycloakPrincipal

In my rest service i can obtain the principal information after authentication using KeycloakPrincipal kcPrincipal = ( ... is the way? See Question&Answers more detail:os...

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xcode - How to create variable argument methods in Objective-C

Maybe this will be obviously simple for most of you, but could you please give an example how to ... stringWithFormat:, NSURL - urlWithFormat. See Question&Answers more detail:os...

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javascript - jQuery: $().click(fn) vs. $().bind('click',fn);

When using jQuery to hookup an event handler, is there any difference between using the click method $(). ... bind's optional data parameter. See Question&Answers more detail:os...

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go - Access struct property by name

Here is a simple go program that is not working : package main import "fmt" type Vertex struct { X int Y int } ... me how to make this work ? See Question&Answers more detail:os...

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ASP.NET MVC3 and Windows Auth on IIS keeps redirecting to /Account/Login

I'm running MVC3 and a windows auth web application. When I deploy to IIS6 it runs great until I hit a page ... file: http://pastie.org/1568510 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 highlight the selected Item of Recycler View?

I have a Recycler View with the Images loaded from the Internal Storage. I want to Highlight the selected item when ... , int position); } } See Question&Answers more detail:os...

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android - SurfaceView flashes black on load

I have a drawing app that takes about 2-5 seconds to load the drawing for complicated drawings (done via an ... to try, please post them. See Question&Answers more detail:os...

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iphone - NSMutableString as retain/copy

I have aa number of NSMutableString's in my app (almost 10-11); all defined as ivar/property @property (nonatomic, ... me know if that is fine. See Question&Answers more detail:os...

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stl - How can currying be done in C++?

What is currying? How can currying be done in C++? Please Explain binders in STL container? See Question&Answers more detail:os...

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c++ - Are virtual destructors inherited?

If I have a base class with a virtual destructor. Has a derived class to declare a virtual destructor too? class ... or omit it if possible? See Question&Answers more detail:os...

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What does default(object); do in C#?

Googling is only coming up with the keyword, but I stumbled across some code that says MyVariable = default( ... am wondering what it means. See Question&Answers more detail:os...

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python - How do you add additional files to a wheel?

How do control what files are included in a wheel? It appears MANIFEST.in isn't used by python setup. ... correctly. Thanks for the suggestions! See Question&Answers more detail:os...

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android - Whatsapp Message Layout - How to get time-view in the same row

I was wondering how WhatsApp handles the time shown in every message. For those who don't know: If the ... Here is the requested screenshot: See Question&Answers more detail:os...

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How to add features missing from the Java regex implementation?

I'm new to Java. As a .Net developer, I'm very much used to the Regex class in .Net. The Java ... which I think is very cleverly designed. See Question&Answers more detail:os...

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How to use hex() without 0x in Python?

The hex() function in python, puts the leading characters 0x in front of the number. Is there anyway to tell it NOT to ... (line))) f.write(' ') See Question&Answers more detail:os...

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How to read datetime back from sqlite as a datetime instead of string in Python?

I'm using the sqlite3 module in Python 2.6.4 to store a datetime in a SQLite database. Inserting it is very easy, ... object. How do 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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