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python - Copying MultiIndex dataframes with pd.read_clipboard?

Given a dataframe like this: C A B 1.1 111 20 222 31 3.3 222 24 333 65 5.5 333 22 6.6 777 74 How do I ... in line 3, saw 3 How can I fix 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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Detect when Android v2 maps has loaded

I'm writing a app that would take 9 snapshots of the map around an area when the user presses a button. ... the map view has finished loading? 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# - Passing a SQL parameter to an IN() clause using typed datasets in .NET

First apologies as there are similar questions on this site, but none of them answer this problem directly. ... .g. ReportViewer/bindingsources) 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# - Console App Mouse-Click X Y Coordinate Detection/Comparison

I have a game that I am working on in a C# console application, purely as practice before going on to better ... . Many Thanks in advance! :D 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 handle Ajax JQUERY POST request with WCF self-host

There are many reasons create a RESTful WCF server (it is easy) and even better if you can avoid ASP and it ... others can follow the results). 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++ - Virtual tables and memory layout in multiple virtual inheritance

Consider following hierarchy: struct A { int a; A() { f(0); } A(int i) { f(i); } virtual void f(int i) ... 3); Why all the calls to f print 33? 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 - Opening tab with anchor link

I have some typical tab content and I really need some help. I would like to achieve, that when user tries to ... the correct tab does not open. See Question&Answers more detail:os...

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

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HTML <base> TAG and local folder path with Internet Explorer

I am trying to use < base> TAG to indicate the source folder containing the media files for my html pages ... it work with IE and Firefox? See Question&Answers more detail:os...

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

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Fragment-Fragment communication in Android

I am at beginner level in Android programming, so I need your sincere help for this. Anyone help me please. I ... it. Please help me. Thank you See Question&Answers more detail:os...

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

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Change File Extension Using C#

I have many file types: pdf, tiff, jpeg, bmp. etc. My question is how can I change file extension? I tried ... .jpeg and delete the file then. See Question&Answers more detail:os...

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

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rails db:migrate vs rake db:migrate

I'm new to rails. I noticed when generating data migration in rails 5, some people use rails db:migrate over ... in rails 5? many thanks See Question&Answers more detail:os...

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

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postgresql - How to add a new Column in a table after the 2nd or 3rd column in the Table using postgres?

How to add a new column in a table after the 2nd or 3rd column in the table using postgres? My ... ADD COLUMN contract_nr int after owner_id 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# - multiple JsonProperty Name assigned to single property

I have two format of JSON which I want to Deserialize to one class. I know we can't apply two [ ... to name1 property of specification class. 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++ - Is std::vector memory freed upon a clear?

Suppose I have a std::vector of structs. What happens to the memory if the vector is clear()'d? std:: ... vecs variable as a reusable buffer? 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 use track by inside ngFor angular 2

tried every syntax i can guess couldnt make it works !  <ion-card *ngFor=" ... a property name inline for trackBy ? 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 - How to sort a Collection<T>?

I have a generic Collection and am trying to work out how I can sort the items contained within it. I've tried ... 't get any of them working. 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 - ResultSet: Retrieving column values by index versus retrieving by label

When using JDBC, I often come across constructs like ResultSet rs = ps.executeQuery(); while (rs.next()) { ... (maybe, concerning certain DBMS)? 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 use class name as parameter in C#

what i want to do is to automatically create some object. In Java, class can be pass as parameter, for example ... do similar thing in C#???? 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 timedelta issue with negative values

Hi I need some help to understand why this is happening. I have a method to track 'time remaining' in an event ... (e, value)) return ''v See Question&Answers more detail:os...

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

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Check if any type of files exist in a directory using BATCH script

Hello I'm looking to write a batch file to check to see if there are any files of any type inside a given ... Empty" ) Thank you for your help See Question&Answers more detail:os...

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

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asp.net mvc - Pass Model To Controller using Jquery/Ajax

I am trying to pass my model to a controller using JQuery/Ajax, I'm not sure how to do this ... return PartialView("_IndexPartial"); } 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++ - Does this really break strict-aliasing rules?

When I compile this sample code using g++, I get this warning: warning: dereferencing type-punned pointer will ... 't actually alias any type? 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++ - How to pass a template function in a template argument list

Suppose I have a template function: template<typename T> T produce_5_function() { return T(5); } How can I pass ... is "you cannot do 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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html - Browserify with require('fs')

I was trying to use browserify on a file that uses the fs object. When I browserify it, the call to require ... I teach. Thanks in advance. See Question&Answers more detail:os...

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

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Regex: Matching by exclusion, without look-ahead - is it possible?

In some regex flavors, [negative] zero-width assertions (look-ahead/look-behind) are not supported. This makes it ... set aside for the moment)? See Question&Answers more detail:os...

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

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642 views

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recursion - Prevent recursive trigger in PostgreSQL

How to prevent recursive execution of trigger? Let's say I want to construct a "tree-able" description on chart ... only up to 16 levels. 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 - How to render partial view in MVC5 via ajax call to a controller and return HTML

How can use AJAX to load a complete partial view rendered in html (so I just set the div.html) I need ... so to avoid reinventing the wheel? 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 - Empty list returned from ElementTree findall

I'm new to xml parsing and Python so bear with me. I'm using lxml to parse a wiki dump, but I just want ... e not having a tag attribute. EDIT: See Question&Answers more detail:os...

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

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