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327 views

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Reading the PDF properties/metadata in Python

How can I read the properties/metadata like Title, Author, Subject and Keywords stored on a PDF file using ... .com/questions/14209214/reading-the-pdf-properties-metadata-in-python...

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

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229 views

1 answer

html - Can I make the CSS :after pseudo element append content outside the element?

I want to format a breadcrumb trail of links using an HTML » entity between adjacent links, so it looks ... -the-css-after-pseudo-element-append-content-outside-the-element...

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

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240 views

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Changing SQL Server collation to case insensitive from case sensitive?

I've recently installed SQL Server 2008 and I selected collation as case sensitive. I want to make it ... /changing-sql-server-collation-to-case-insensitive-from-case-sensitive...

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

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120 views

1 answer

ios - Why Is UITextField.text An Optional?

It starts out as an empty string instead of nil. Even when it is explicitly set to nil it remains an ... //stackoverflow.com/questions/42861115/why-is-uitextfield-text-an-optional...

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

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95 views

1 answer

What is best way to start and stop hadoop ecosystem, with command line?

I see there are several ways we can start hadoop ecosystem, start-all.sh & stop-all.sh Which say it's ... is-best-way-to-start-and-stop-hadoop-ecosystem-with-command-line...

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

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173 views

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python - list.extend and list comprehension

When I need to add several identical items to the list I use list.extend: a = ['a', 'b', 'c ... from:https://stackoverflow.com/questions/3899645/list-extend-and-list-comprehension...

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

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75 views

1 answer

javascript - JQuery add class to parent element

I have to set a class name on a (li) element. This script find all the (a) elements in the list, ... :https://stackoverflow.com/questions/3482543/jquery-add-class-to-parent-element...

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

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353 views

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browse data in Android SQLite Database

Is there a way for an Android user to browse the SQLite databases on his/her phone and view the data ... /stackoverflow.com/questions/2530548/browse-data-in-android-sqlite-database...

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

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92 views

1 answer

c# - What is metadata in .NET?

I googled several sites to understand what metadata is in .NET and it means. I'm still new to C# WPF ... :https://stackoverflow.com/questions/8861065/what-is-metadata-in-net...

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

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121 views

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How can I separate Perl variables from text in interpolated strings?

Consider: print " $foo", "AAAAAAAA", $foo, "BBBBBBBB"; Let's say I want to use this code with a print ... 506147/how-can-i-separate-perl-variables-from-text-in-interpolated-strings...

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

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295 views

1 answer

git - How can I rename my branch from TortoiseGit?

I know the way to rename branch from command line, but - since I'm using TortoiseGit - I'm curious if ... .com/questions/36133271/how-can-i-rename-my-branch-from-tortoisegit...

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

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168 views

1 answer

ruby - bundle install/update too slow

I just installed RVM, Ruby, Rails etc. on my virtual ubuntu 12.04 32bit running in a virtualbox. Now ... //stackoverflow.com/questions/15343771/ruby-bundle-install-update-too-slow...

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

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217 views

1 answer

c# - Using HttpClient, how would I prevent automatic redirects and get original status code and forwading Url in the case of 301

(This question already has an answer here): question from:https://stackoverflow.com/questions/14731980/using- ... -would-i-prevent-automatic-redirects-and-get-original-statu...

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

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82 views

1 answer

c++ - How do I create a library?

Let's say I have 10 *.hpp and *.cpp files that I need to compile a code. I know that I will need ... from:https://stackoverflow.com/questions/16693273/how-do-i-create-a-library...

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

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191 views

1 answer

What is the C# "checked" keyword for?

I just came across this keyword for the first time. What does it do, and when should it be used? int ... .com/questions/20709495/what-is-the-c-sharp-checked-keyword-for...

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

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326 views

1 answer

ruby on rails - What's the difference between “includes” and “preload” in an ActiveRecord query?

I'm struggling to find a comparison of includes() and preload() for ActiveRecord objects. Can anyone ... the-difference-between-includes-and-preload-in-an-activerecord-query...

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

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426 views

1 answer

layout - How to remove the Live Share button?

I've installed Visual Studio 2019 and the first thing that annoys me is the large black, empty space on ... .com/questions/55491242/how-to-remove-the-live-share-button...

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

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405 views

1 answer

ajax - How to read a text file from server using JavaScript?

On the server, there is a text file. Using JavaScript on the client, I want to be able to read this file ... questions/4533018/how-to-read-a-text-file-from-server-using-javascript...

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

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377 views

1 answer

Gradle - Delete files with certain extension

I am using Gradle and would like to delete all files with a certain extension. Is that something ... .com/questions/27285885/gradle-delete-files-with-certain-extension...

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

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123 views

1 answer

How to get ndk-gdb working on Android?

I'm trying to get the NDK debugger working but with no success so far. To make sure my debug symbols are ... .com/questions/10534367/how-to-get-ndk-gdb-working-on-android...

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

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310 views

1 answer

ajax - How to read a text file from server using JavaScript?

On the server, there is a text file. Using JavaScript on the client, I want to be able to read this file ... questions/4533018/how-to-read-a-text-file-from-server-using-javascript...

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

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156 views

1 answer

html - Images in email: link or embed?

I noticed that almost all email messages I get do not embed images, but link them from the http instead (and ... //stackoverflow.com/questions/2429358/images-in-email-link-or-embed...

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

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205 views

1 answer

haskell - What's the difference between parametric polymorphism and higher-kinded types?

I am pretty sure they are not the same. However, I am bogged down by the common notion that " ... /whats-the-difference-between-parametric-polymorphism-and-higher-kinded-types...

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

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128 views

1 answer

c# - Sending Outlook meeting requests without Outlook?

I just wonder if it is possible to send Meeting Requests to people without having Outlook installed on ... .com/questions/461889/sending-outlook-meeting-requests-without-outlook...

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

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575 views

1 answer

intellij idea - How to configure in IdeaVIM Ctrl + N and Ctrl + P completion from Vim?

In Vim we can use Ctrl + N or Ctrl + P to finish code completion. How to configure it in IdeaVim for IntelliJ? ... how-to-configure-in-ideavim-ctrl-n-and-ctrl-p-completion-from-vim...

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

0 votes

241 views

1 answer

windows - What is the difference between BOOL and bool?

In VC++ we have the data type BOOL which can assume the value TRUE or FALSE, and we have the ... stackoverflow.com/questions/6420526/what-is-the-difference-between-bool-and-bool...

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

0 votes

376 views

1 answer

excel - C#: Getting the number of rows/columns with ExcelPackage

I need to read and write data from an Excel spreadsheet. Is there a method to finding out how many rows ... questions/1715926/c-getting-the-number-of-rows-columns-with-excelpackage...

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

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189 views

1 answer

java - Why are readObject and writeObject private, and why would I write transient variables explicitly?

I am reading the chapter on Serialization in Effective Java. Who calls the readObject() and writeObject()? Why are ... -and-writeobject-private-and-why-would-i-write-transient-vari...

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

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