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How do I hide the output from curl in PHP? My code as it stands is the following: $ch = curl_init(); ... a "success" or "failed" message? 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 - What could be the cause of RejectedExecutionException

I am getting this exception on my tomcat server (+liferay) java.util.concurrent.RejectedExecutionException my class is like ... how to fix 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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java - Invalid signature file digest for Manifest main attributes exception while trying to run jar file

I am trying to run the jar file of my project. I am working on intelliJ and have use artifacts to generate ... What am i doing wrong?? update 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 - Is setInterval CPU intensive?

I read somewhere that setInterval is CPU intensive. I created a script that uses setInterval and monitored the CPU ... CPU issues with 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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c# - Setting dropdownlist selecteditem programmatically

I want to set the selecteditem attribute for an ASP.Net dropdownlist control programmatically. So I want to pass ... equal to the passed value. 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 - Generating a Random Decimal in C#

How can I get a random System.Decimal? System.Random doesn't support it directly. 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 check if $_GET is empty?

How to check if $_GET is empty? 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 - npm ERR! network getaddrinfo ENOTFOUND

I am getting npm ERR! network getaddrinfo ENOTFOUND error while trying to install any package using NPM. I know ... in order rectify this 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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ubuntu - Python: Unable to Render Tex in Matplotlib

I recently upgraded my laptop to Snow Leopard, updated TeX to Version 3.1415926 (TeX Live 2011/MacPorts 2011_5 ... would be much 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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c++ - Can sizeof return 0 (zero)

Is it possible for the sizeof operator to ever return 0 (zero) in C or C++? If it is possible, is it correct from a standards point of view? 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 apply an opacity without affecting a child element with html/css?

I want to achieve this using html and css: I have tried to set the opacity of the container to 0.3 and ... below (by lowering the opacity). See Question&Answers more detail:os...

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

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Return multiple values from a Java method: why no n-tuple objects?

Why isn't there a (standard, Java certified) solution, as part of the Java language itself, to return multiple ... as a return sounds overkill. See Question&Answers more detail:os...

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

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jquery - Programmatically create select list

Does anyone know of a technique to programmatically create an HTML select list including options 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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c++ - static constexpr member of same type as class being defined

I would like a class C to have a static constexpr member of type C. Is this possible in C++11? Attempt 1: ... of Foo::f differing in constexpr. 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 cookies work?

I wanted to know the interactions of a browser (i.e. Firefox ) and a website. When I submit my user name and ... if I want to use that cookie? See Question&Answers more detail:os...

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

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308 views

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IntelliJ IDEA code format from checkstyle configuration

I've decided to contribute to android maven plugin. They use quite specific code style format. It will take ... interested if it's possible. See Question&Answers more detail:os...

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

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188 views

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Enforce strong type checking in C (type strictness for typedefs)

Is there a way to enforce explicit cast for typedefs of the same type? I've to deal with utf8 and sometimes I ... types, it can be life saving. 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 - Cross-platform subprocess with hidden window

I want to open a process in the background and interact with it, but this process should be invisible in ... proc = subprocess.Popen(command) 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 - Spring autowired bean for @Aspect aspect is null

I have the following spring configuration: <context:component-scan base-package="uk.co.mysite.googlecontactsync.aop"/> ... from the ground up. See Question&Answers more detail:os...

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

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Adding external JAR to Maven project in NetBeans

When I right click on my Maven project and choose the Add dependency option and I type my external jar's name ... jar to a Maven project? See Question&Answers more detail:os...

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

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560 views

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java - How to combine multiple PNGs into one big PNG file?

I have approx. 6000 PNG files (256*256 pixels) and want to combine them into a big PNG holding all of them ... and 15360 pixels high. 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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google maps - Get the distance between two locations in android?

i need to get distance between two location, but i need to get distance like blue line in the picture. I try ... but i get red line distance. 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 - Nodejs: get filename of caller function

I wonder how-to get an absolute path of a caller of a function? Let say that: in file a.js I call b(); ... .js absolute path from b.js in node? 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 Google's Android OpenGL tutorial teaching incorrect linear algebra?

After helping another user with a question regarding the Responding to Touch Events Android tutorial, I downloaded the ... 's going on 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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iphone - Push Notifications in Mavericks iOS Simulator

I can't find anything about this, and I have never done anything with push notifications (but I know vaguely how ... could test on my computer. See Question&Answers more detail:os...

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

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dll - Can I use a .NET 4.0 library in a .NET 2.0 application?

I'm running into some problems using my .NET 4.0 libraries in .NET 2.0 applications. I guess I was under the impression ... 2.0 code up to 4.0. 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 handle an asymptote/discontinuity with Matplotlib

When plotting a graph with a discontinuity/asymptote/singularity/whatever, is there any automatic way to prevent Matplotlib ... ,4) 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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ios - iPhone GPS in background never resumes after pause

My application needs to track user location changes in the background and works fine as long as ... [locationManager startUpdatingLocation]; See Question&Answers more detail:os...

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

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