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c - Difference between "while" loop and "do while" loop

What is the difference between while loop and do while loop. I used to think both are completely same.Then ... /questions/3625759/difference-between-while-loop-and-do-while-loop...

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

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How to split a string in bash delimited by tab

I'm trying to split a tab delimitted field in bash. I am aware of this answer: how to split a string in shell ... /questions/6654849/how-to-split-a-string-in-bash-delimited-by-tab...

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

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r - Create end of the month date from a date variable

I have a large data frame with date variables, which reflect first day of the month. Is there an easy way to ... questions/9503896/create-end-of-the-month-date-from-a-date-variable...

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

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How to set Keyboard type of TextField in SwiftUI?

I can't seem to find any information or figure out how to set the keyboard type on a TextField for SwiftUI. ... /questions/56517515/how-to-set-keyboard-type-of-textfield-in-swiftui...

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

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MVVM Light: Adding EventToCommand in XAML without Blend, easier way or snippet?

Can anyone tell me what the actual syntax is for EventToCommand class. From what I believe is that ... adding-eventtocommand-in-xaml-without-blend-easier-way-or-snippet...

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

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Which version of R is running in my computer?

There are two R directories on my computer: one is /home/R-2.15.2,the other is /home/R-2.15.1, ... stackoverflow.com/questions/15983069/which-version-of-r-is-running-in-my-computer...

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

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c# - Easiest way to have a program minimize itself to the system tray using .NET 4

I'm making a new WPF application and I need to be able to minimize the application and have nice and snug in the ... -have-a-program-minimize-itself-to-the-system-tray-using-net-4...

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

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bash - how to write finding output to same file using awk command

awk '/^nameserver/ && !modif { printf("nameserver 127.0.0.1 "); modif=1 } {print}' testfile.txt It ... questions/8019617/how-to-write-finding-output-to-same-file-using-awk-command...

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

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guid - How to generate unique 64 bits integers from Python?

I need to generate unique 64 bits integers from Python. I've checked out the UUID module. But the UUID it ... /questions/3530294/how-to-generate-unique-64-bits-integers-from-python...

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

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Firebug like plugin for Safari browser

Is there a development tool plugin for Safari much like how there exists the Firebug plugin for Firefox? ... .com/questions/3648866/firebug-like-plugin-for-safari-browser...

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

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PHP : Remove object from array

What is an elegant way to remove an object from an array of objects in PHP ? Just to be clear .. ... from:https://stackoverflow.com/questions/3573313/php-remove-object-from-array...

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

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How to write the output to html file with Python BeautifulSoup

I modified an html file by removing some of the tags using beautifulsoup. Now I want to write the results back ... /how-to-write-the-output-to-html-file-with-python-beautifulsoup...

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

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ruby on rails - How to find unused gems in my Gemfile

How to find unused gems in my Gemfile, so that I can cleanup references which are no longer used. question from: ... .com/questions/14333963/how-to-find-unused-gems-in-my-gemfile...

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

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Registering Zend Database Adapter in Registry

I am looking to register a reference to the main Database Adapter in the Registry during Bootstrapping so it ... .com/questions/921024/registering-zend-database-adapter-in-registry...

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

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node.js - Two versions of same npm package in Node application

I'm working on a CLI tool in NodeJS that uses another NodeJs package that we develop, which is an SDK. ... /questions/43770328/two-versions-of-same-npm-package-in-node-application...

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

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html - CSS - vertical-align not working

I got some really basic HTML & CSS: Here's the HTML: <!DOCTYPE html> <html> <head> <meta charset ... from:https://stackoverflow.com/questions/5442226/css-vertical-align-not-working...

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

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python - Order of Serializer Validation in Django REST Framework

Situation While working with validation in the Django REST Framework's ModelSerializer, I have noticed that the ... 27591574/order-of-serializer-validation-in-django-rest-framework...

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

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Git - how to verify if and where Git is installed on Ubuntu

I am new to Ubuntu and Git. How I can verify that I have installed git on my machine? When I tried apt-get I ... /28819345/git-how-to-verify-if-and-where-git-is-installed-on-ubuntu...

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

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php - Uploading files with SFTP

I have successfully uploaded files over ftp, but I now need to do via SFTP. I can successfully connect to ... :https://stackoverflow.com/questions/9572314/uploading-files-with-sftp...

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

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How to read file binary in C#?

I want to make a method that takes any file and reads it as an array of 0s and 1s, i.e. its binary code ... https://stackoverflow.com/questions/2426190/how-to-read-file-binary-in-c...

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

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c# - No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlClient'.

We are using EntityFramework 6 with Code First. We have a console app that has no reference to EntityFramework but ... -provider-found-for-the-ado-net-provider-with-invariant-name...

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

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java - How to modify values of JsonObject / JsonArray directly?

Once i have parsed a JSON String into a GSON provided JsonObject class, (assume that i do not wish to ... /questions/11443928/how-to-modify-values-of-jsonobject-jsonarray-directly...

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

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javascript regex : only english letters allowed

Quick question: I need to allow an input to only accept letters, from a to z and from A to Z ... //stackoverflow.com/questions/3073176/javascript-regex-only-english-letters-allowed...

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

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hadoop - hdfs dfs -put with overwrite?

I am using hdfs dfs -put myfile mypath and for some files I get put: 'myfile': File Exists does that ... :https://stackoverflow.com/questions/36816526/hdfs-dfs-put-with-overwrite...

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

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sql - Trim spaces in string - LTRIM RTRIM not working

I tried this code - UPDATE Table SET Name = RTRIM(LTRIM(Name)) Data type of Name is varchar(25) None ... .com/questions/21585914/trim-spaces-in-string-ltrim-rtrim-not-working...

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

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ssl - java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

I have a mapping application that can add ArcGIS 9.3+ base maps given a URL. One of the URLs ... /java-security-cert-certificateexception-certificates-does-not-conform-to-algori...

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

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javascript - D3 - how to deal with JSON data structures?

I'm new to D3, and spent already a few hours to find out anything about dealing with structured data, but ... .com/questions/10086167/d3-how-to-deal-with-json-data-structures...

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

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Note bene: I realize this is an immensely complicated question with about a million levels of nuance that ... .com/questions/5024114/suggested-compression-ratio-with-h-264...

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

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