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"android:elevation=" doesn't work on devices pre-Lollipop with compile API21

I'm trying to use "android: elevation =" in my application but once I run it does not appear in ... 27693843/androidelevation-doesnt-work-on-devices-pre-lollipop-with-compile-api21...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Using Sklearn's TfidfVectorizer transform

I am trying to get the tf-idf vector for a single document using Sklearn's TfidfVectorizer ... //stackoverflow.com/questions/20132070/using-sklearns-tfidfvectorizer-transform...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - narrowing conversion from unsigned to double

static_assert(sizeof(unsigned) == 4, ":("); static_assert(sizeof(double) == 8 ,":("); ... /stackoverflow.com/questions/11521016/narrowing-conversion-from-unsigned-to-double...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to handle change text of span

I'm using jQuery and I want to show some calculation in a span (called span1) and I want when text of ... //stackoverflow.com/questions/10958529/how-to-handle-change-text-of-span...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jit - What are Torch Scripts in PyTorch?

I've just found that PyTorch docs expose something that is called Torch Scripts. However, I do not know: ... /stackoverflow.com/questions/53900396/what-are-torch-scripts-in-pytorch...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language design - Why no stored type properties for classes in swift?

Working through The Swift Programming Language, I was surprised to see that, unlike structures and enumerations, classes ... /why-no-stored-type-properties-for-classes-in-swift...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Smartcast is impossible because property has open or custom getter

I am learning Kotlin. My code is as follows: override fun onViewCreated(view: View?, savedInstanceState: Bundle ... -is-impossible-because-property-has-open-or-custom-getter...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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caught segfault error in R

I am getting a caught segfault error every time I try to run any plotting functions from the ggplot2 package ... ://stackoverflow.com/questions/25672974/caught-segfault-error-in-r...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - When will proper stack traces be provided on window.onError function?

Exceptions/Errors in many other programming languages (say java, ruby) always provide stacktrace/backtrace information. ... -stack-traces-be-provided-on-window-onerror-function...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - It is possible to show keyboard without using UITextField and UITextView iphone app?

I am working in iPhone messaging based app. I want to show keyboard with keyboard inputAccessoryView in ... -to-show-keyboard-without-using-uitextfield-and-uitextview-iphone...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Intercepting an exception inside IDisposable.Dispose

In the IDisposable.Dispose method is there a way to figure out if an exception is being thrown? ... .com/questions/220234/intercepting-an-exception-inside-idisposable-dispose...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Deserialize JSON string to Dictionary<string,object>

I have this string: [{ "processLevel" : "1" , "segments" : [{ "min" : "0", "max" ... https://stackoverflow.com/questions/20727787/deserialize-json-string-to-dictionarystring-object...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to uninstall all unused packages in a conda virtual environment?

I have a conda virtual environment with several unused packages installed inside it (either using pip install or ... -uninstall-all-unused-packages-in-a-conda-virtual-environment...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Best practice for ASP.NET MVC resource files

What are the best usage of the following resource files. Properties → Resources (Phil used this resource for ... questions/1875368/best-practice-for-asp-net-mvc-resource-files...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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networking - What does it mean to bind() a socket to any address other than localhost?

I don't understand what it means to bind a socket to any address other than 127.0.0.1 (or ::1, etc.). Am ... what-does-it-mean-to-bind-a-socket-to-any-address-other-than-localhost...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to initialize std::unique_ptr in constructor?

A.hpp: class A { private: std::unique_ptr<std::ifstream> file; public: A(std::string filename); ... .com/questions/19237206/how-to-initialize-stdunique-ptr-in-constructor...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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unit testing - C++ Jenkins QA Stack / Tools

We are currently in the process of building a QA stack for you C++ development. We already have multiple ... https://stackoverflow.com/questions/7271465/c-jenkins-qa-stack-tools...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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C# parameterized queries for Oracle - serious & dangerous bug!

This is an absolute howler. I cannot believe my own eyes, and I cannot believe nobody before me would ... /3876856/c-sharp-parameterized-queries-for-oracle-serious-dangerous-bug...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Fetching mail from a POP3 server using php

I am trying to fetch a mail from POP3 (I am using POP3 mail server and I am trying to fetch the ... stackoverflow.com/questions/3165014/fetching-mail-from-a-pop3-server-using-php...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - HttpGet with HTTPS : SSLPeerUnverifiedException

Using HttpClient, I receive the following error when attempting to communicate over HTTPS: Exception ... .com/questions/2308774/httpget-with-https-sslpeerunverifiedexception...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Go get cannot find local packages when using multiple modules in a repo

I'm having issues with go's new module system, as I'd like to define a local module and import it in the ... -get-cannot-find-local-packages-when-using-multiple-modules-in-a-repo...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linq - SingleOrDefault() method: what is "a default value"?

I'm testing for the existence of a user record in the following statement: if (fromUser.AllFriends.Where(af ... com/questions/3713122/singleordefault-method-what-is-a-default-value...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Eclipse: Keyboard shortcut for switching between consoles?

In Eclipse (I'm using version 3.6 aka Helios), you can use Alt+Command+Q C (on Mac ... stackoverflow.com/questions/3324062/eclipse-keyboard-shortcut-for-switching-between-consoles...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Resize UIImage with aspect ratio?

I'm using this code to resize an image on the iPhone: CGRect screenRect = CGRectMake(0, 0, 320.0, ... :https://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Why install docker on ubuntu should be `sudo apt-get install docker.io`?

(Closed). This question is opinion-based. It is not currently accepting answers. question from:https://stackoverflow.com/ ... -on-ubuntu-should-be-sudo-apt-get-install-docker-io...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Synchronous XMLHttpRequest on the main thread is deprecated

Why has this message suddenly started to appear in the Firefox console? I'm using JQuery 1.7.1. ... /questions/24740773/synchronous-xmlhttprequest-on-the-main-thread-is-deprecated...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - When trying to replace values, "missing values are not allowed in subscripted assignments of data frames"

I have a table that has two columns: whether you were sick (H01) and the number of days sick (H03). ... trying-to-replace-values-missing-values-are-not-allowed-in-subscripted-as...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - is it possible to redirect console output to a variable?

In R, I'm wondering if it's possible to temporarily redirect the output of the console to a variable? p.s ... /16358435/is-it-possible-to-redirect-console-output-to-a-variable...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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