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algorithm - Nature of Tree Data Structure

According to blogs/books/google etc. A tree is a data structure that simulates a hierarchical tree structure, ... I am understanding wrong? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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windows - Intemittent Cannot create ActiveX component

Everything was working fine, and then our code starts throwing: Cannot create ActiveX component when we try to ... nuts. Any help appreciated. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to group a collection of data by its keys using Underscore.js?

Given the following data format, how can the data be grouped by their keys? The format of the data is: data=[ { ... ], "firstname": "kannan" }] See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - How to solve Syntax error in Update query in Sqlite Database

I am updating Status_msg column using Update query in Sqlite Database by value 1 to 0. The Syntax error occurred ... (); return Status_Msg; } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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windows - NSIS after PyInstaller Kivy app can't find database

I successfully packaged my Kivy app for Windows using PyInstaller and my app.exe runs without any problems. (.spec: ... in the NSIS .exe? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Sending data back and forth from android server to python client

I have posted this few days back but now i ran into another problem after solving that one. DESCRIPTION: working on an ... .text = message } } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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how to fetch 10 minutes before created records in mongodb

I have below format mongodb doc /* 1 */ { "_id" : "5f5b1b5d89967c6c48003346", "UID" : "5f5b15ca89967c6c4800327d", " ... 09-11 11:44:37", } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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transfer - How to move files based on their names to specific directories in python?

I have a directory called /user/local/ inside which i have several files of the form, jenjar.dat_1 and ... join(target, prefix, fileName)) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - QString replace characters outside of quotes

I'm currently reading in a json file to a QJsonDocument and then converting it to a QString such that it ... .toJson(QJsonDocument::Indented)); See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Java Eclipse issue

Hello I have just downloaded Eclipse and started studying for my semester final exam. However when I try to debug I get this: How do I fix it? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to use ?? with return?

I want to return Todo object whenever there is such an object, otherwise return NotFound(). I also want to ... } but generates runtime errors: See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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r - How to read a data set where variables are stored as rows, and some variable names contain "#"

I have a fairly large (about 1200 variables with 14 observations each) data set, stored in a text file, with a very ... , but I don't know how. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Sort JavaScript array of Objects by two properties and given order

I have this JavaScript array of Objects: data = [ {'deviation': 57.41, 'provider': "This", 'measure': "median"}, ... { return -1; } return 0; } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Exit the app when back button in device is clicked

There are 3 activities in my app. Activity A(Main Page) -> Activity B -> Activity C. When submit button in Activity ... =false; } }, 2000); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - how to make the dropdownlist in edit mode

<asp:DropDownList ID="ddlReportFavorite" runat="server" Height="16px" Width="190px"> </asp:DropDownList> I ... Ajax Control Toolkit. Thanks. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Is there a way to move object much faster on linerenderer line?

using System.Collections; using System.Collections.Generic; using UnityEngine; public class MoveOnCurvedLine : MonoBehaviour ... length lines. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to solve reducing maven download dependencies time when using docker to build a maven project?

I have built common mavne dependencies as a base docker image, but when I build a project Dockerfile, it still will ... a long time to build. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - from dataGridView1.Rows.Clear() until end to my code

Please Let me explain of there is something weird going on to my codes with my visual studio pro. There are ... extra codes of files. Thanks See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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the fastest serial port communication possible in C#?

I am new at this forum and I do not have many experiences with programming in C#. I have build simple Windows ... some advice or idea. Toma? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - how to make a custom listener without instantiating the class each time

have a custom listener used for sending a message from one java class to another, however when ... addAndDisplayTextToString(String setString){ StringBuilder stb = new StringBuild...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - how do i stop this "IndexOutOfBoundsException" issue?

So I the app lets a user place down blocks on a grid, if the user lines up 3 or more blocks with the ... for other blocks next to each other.. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sql - Avoiding NULL return value with GREATEST function

How can I avoid a null return value when invoking the greatest function with a null parameter. Example: select ... the null return value? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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swift - Count number of mutual friends in Firebase

I'm trying to pull the number of mutual friends that I have with any given userID. I first pulled all my ... | |___ friendID1 | |___ myID See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to decode and upload GIF via AJAX and PHP

I'm currently using Gifshot.js to create user avatars on my site. I want to be able to store the GIF ... /image.gif', base64_decode($img)); See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Error deploying to Azure through git (bitbucket hosted git repo)

This morning, I went to our website to find out this : The page cannot be displayed because an internal server ... bring my site back on... See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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199 views

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android - Launching an application if installed or redirect to Google Play

Until now I was using this code to launch a 3rd party application if installed or redirect to Google Play to download ... can help me^^ Thanks! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Where can I find .Net 4 installer?

I want to download .Net 4, but I can't find it. Where can I find it for installing it offline? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - Crashing when trying to pull image from URL with Swift

I am saving the image url successfully from an api and am having issues showing it when I run the app. ... .avatarImage.image = avatarImage }) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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