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python - Pythonic way to insert every 2 elements in a string

Is there a pythonic way to insert an element into every 2nd element in a string? I have a string: 'aabbccdd' ... I would go about doing 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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90 views

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How to find default web browser using C#?

Is there a way I can find out the name of my default web browser using C#? (Firefox, Google Chrome, etc.. ... please show me with an example? See Question&Answers more detail:os...

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

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224 views

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c++ - Why is the destructor of the class called twice?

Apologies if the question sounds silly, I was following experts in SO and trying some examples myself, and this is ... the class called twice ? See Question&Answers more detail:os...

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

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305 views

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c - Undefined reference to `initscr' Ncurses

I'm trying to compile my project and I use the lib ncurse. And I've got some errors when compiler links ... returned 1 exit status Thanks a lot See Question&Answers more detail:os...

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

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384 views

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Populate a Drop down box from a mySQL table in PHP

I am trying to populate a Drop down box from results of a mySQL Query, in Php. I've looked up examples online ... my Query: Select PcID from PC; See Question&Answers more detail:os...

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

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964 views

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mpi - Sending 2D arrays in Fortran with MPI_Gather

I want to send 2d chunks of data using MPI_GATHER. For example: I have 2x3 arrays on each node and I want 8x3 array on root ... 1 5 1 5 5 1 5 5 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 - Gradle DSL method not found: 'compile()'

I had this gradle error. Error:(9, 0) Gradle DSL method not found: 'compile()' I have tried refering to similar ... } What's wrong with my code? See Question&Answers more detail:os...

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

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293 views

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Javascript with jQuery: Click and double click on same element, different effect, one disables the other

I have an interesting situation - I have a table row which, currently, shows it's hidden counterpart when I click ... </tbody> </table> Cheers See Question&Answers more detail:os...

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

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Redirect to external URL in JSF

I've been dealing with a problem with JSF, when it comes to redirect to pages inside my app it works just fine, ... some one guide me on 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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windows - Read stdin stream in a batch file

Is it possible to use a piped stdin stream inside a batch file? I want to be able to redirect the output ... repeatedly. Is there another way? See Question&Answers more detail:os...

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

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1.3k views

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image - HTML5 drag and drop between windows

is there anyway with the HTML5 Drag & Drop functionality or/and the File API to drag an jpg image from one window ... to a browser? Thanks a lot 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# - Datagrid binding in WPF

I know this has been asked already but I have done almost everything what is suggested by developers. <DataGrid x: ... do with the object list? See Question&Answers more detail:os...

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

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448 views

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java - How to pass parameter to jsp:include via c:set? What are the scopes of the variables in JSP?

I have this on welcome.jsp <c:set var="pgTitle" value="Welcome"/> <jsp:include page="/jsp/inc/head.jsp" ... the core tag library on both pages. See Question&Answers more detail:os...

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

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477 views

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python - Pandas lookup based on value

I have the following DataFrame: Date best a b c d 1990 a 5 4 7 2 1991 c 10 1 2 0 1992 d 2 1 4 12 1993 ... c" (=2) from the first df. 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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344 views

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javascript - Get parent element of a selected text

Is it possible to get the parent element of a selected text in the page? For example: <div class="someparent ... element of the selected text? See Question&Answers more detail:os...

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

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293 views

1 answer

Connecting to remote MySQL server using PHP

I am attempting to connect to a remote MySQL server from my local machine virtualhost using the following code: $conn ... remote server 5.2.12 See Question&Answers more detail:os...

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

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147 views

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android - Google Maps API v2 draw part of circle on MapFragment

I need to draw something like this which will be painted and have little transparency Also it needs to be clickable ( ... my arc isn't on map? See Question&Answers more detail:os...

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

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670 views

1 answer

google cloud platform - the zone does not have enough resources available to fulfill the request/ the resource is not ready

I failed to start my instance (through the web browser), it gave me the error: "The zone 'projects/XXXXX ... with one persistent disk attached. See Question&Answers more detail:os...

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

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220 views

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Split JavaScript array in chunks using Lodash

I need to split a JavaScript array into n sized chunks. E.g.: Given this array ["a1", "a2", "a3" ... how much slower the underscore solution is. See Question&Answers more detail:os...

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

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228 views

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How do I set default host for url helpers in rails?

I would like to do something like this config.default_host = 'www.subdomain.example.com' in some of my ... of Rails::Initializer.config? See Question&Answers more detail:os...

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

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1.4k views

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http - Why can't browser send gzip request?

If webserver can send gzip response, why can't browser sent gzip request? See Question&Answers more detail:os...

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

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353 views

1 answer

WPF ListView Inactive Selection Color

I'm creating a WPF application where several ListView selections are made in a row (similar to the iTunes browser ... /Style.Resources> </Style> See Question&Answers more detail:os...

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

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300 views

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Return the nth record from MySQL query

I am looking to return the 2nd, or 3rd, or 4th record from a MySQL query (based on a query by ID ascending) ... is the 3rd row in the query. See Question&Answers more detail:os...

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

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161 views

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php - array_splice() for associative arrays

Say I have an associative array: array( "color" => "red", "taste" => "sweet", "season" => "summer" ); ... , it can work with numeric keys only. See Question&Answers more detail:os...

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

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111 views

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VBA collection: list of keys

After I add some values to the VBA collection, is there any way to retain the list of all keys? For ... 'm using VBA through AutoCAD 2007 See Question&Answers more detail:os...

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

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272 views

1 answer

javascript - Is NaN equal to NaN?

parseFloat("NaN") returns "NaN", but parseFloat("NaN") == "NaN" returns false. Now, that's probably a ... 't understand how this returns false. See Question&Answers more detail:os...

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

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399 views

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c# - Initialization Order of Static Fields in Static Class

given the following code: public static class Helpers { private static Char[] myChars = new Char[] {'a', ... length to assign to myCharsSize? See Question&Answers more detail:os...

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

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213 views

1 answer

Android KitKat securityException when trying to read from MediaStore

java.lang.SecurityException: Permission Denial: opening provider com.android.providers.media.MediaDocumentsProvider from ProcessRecord ... " /> See Question&Answers more detail:os...

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

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