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c++ - Why cannot I read data from a serial port?

I have faced the following problem: I wish to read data comming to my serial port on linux. Data are send from ... com/questions/66061664/why-cannot-i-read-data-from-a-serial-port...

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

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139 views

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android - How I can solve the Flutter Problem installation?

(This question already has answers here): question from:https://stackoverflow.com/questions/66061629/how-i-can-solve-the-flutter-problem-installation...

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

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388 views

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windows - Disassembling Hello World program in IDA

I've de-compiled in IDA 7.0 (freeware version) such a simple c program (compiled in the Microsoft ... /stackoverflow.com/questions/66061594/disassembling-hello-world-program-in-ida...

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

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660 views

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sql server - SSIS convert object variables to string in expression builder

I have a few queries in my SSIS package where I need to loop through a bunch of table names pulled ... /66061590/ssis-convert-object-variables-to-string-in-expression-builder...

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

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128 views

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java - What is a NullPointerException, and how do I fix it?

question from:https://stackoverflow.com/questions/66061573/can-somone-help-me-have-this-javafx-error...

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

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282 views

1 answer

Select all rows that contain the first x unique values in another column in Pandas [Python]

selected =df['col2'].unique().iloc[1:5] apples = df[df['col2'].isin([selected])] print(df) Here is my ... all-rows-that-contain-the-first-x-unique-values-in-another-column-in-pand...

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

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175 views

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Data Availability in Apache Kafka

How does kafka guarantee availability while the leader election is happening? Once a broker goes down, ... stackoverflow.com/questions/66061534/data-availability-in-apache-kafka...

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

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113 views

1 answer

python - Django rest framework - including an api key for access authorization

I'm creating a Restful API using Django Rest Framework, i'm not serving sensitive data but still i wanted ... /django-rest-framework-including-an-api-key-for-access-authorization...

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

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137 views

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python - Iterating over Keys of a dictionary in For and If loop

I have a dictionary which looks like this: websites = { "instagram": f'https://www.instagram.com/{username}', " ... /66061350/iterating-over-keys-of-a-dictionary-in-for-and-if-loop...

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

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180 views

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c - How can sum of FTW->base and some string (path) returns a string?

I call nftw() function like this: nftw("/sys/class/tty", opearate_on_tty_item, 1, flags) and function nftw() executes ... can-sum-of-ftw-base-and-some-string-path-returns-a-string...

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

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443 views

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Django, DRF: How to send permission class details while making an API call using POSTMAN?

# views.py @login_required @permission_classes([IsAdminUser]) @api_view(['GET']) def say_hi_admin(request): return ... permission-class-details-while-making-an-api-call-using...

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

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305 views

1 answer

Trigger scanning on a Zebra TC25 with an Android Delphi application

I'm developing an Android application with Embarcadero RAD Studio 10.2 to deploy on a Zebra TC25. I'm trying ... trigger-scanning-on-a-zebra-tc25-with-an-android-delphi-application...

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

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243 views

1 answer

Diff of a Sum as Sum of Diffs Sympy

Hi I am starting with sympy, I want to write the diff of a sum as the dum os diff in sympy. I need to ... /stackoverflow.com/questions/66061701/diff-of-a-sum-as-sum-of-diffs-sympy...

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

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215 views

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synonym - "Is-a" relationship in Solr Synoyms

I have two texts: Text-1 Our new Android Smartphone Text-2 Our new iPhone Smartphone I would like to ... //stackoverflow.com/questions/66061943/is-a-relationship-in-solr-synoyms...

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

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1.0k views

1 answer

angular - There is way to set different underline color for each mat-tab?

I have material angular mat-tab component, i would like to set a different underline color for each mat-tab, i tried ... -is-way-to-set-different-underline-color-for-each-mat-tab...

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

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102 views

1 answer

How do I pass JavaScript variables to PHP?

I want to pass JavaScript variables to PHP using a hidden input in a form. But I can't get the value of $_POST['hidden1'] ... /how-do-i-get-a-return-value-of-a-js-function-from-php...

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

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272 views

1 answer

xml - How to analyze a JAVA DOM Document using a SAX handler?

I am going to write a new functionality in my code that processes some XML data in a memory/CPU-efficient way. ... 66061876/how-to-analyze-a-java-dom-document-using-a-sax-handler...

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

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639 views

1 answer

odoo 12 - Sales order line

Hello i'm doing a code with python 3.7 and i need to delete in a order of Sale al Products with ... . question from:https://stackoverflow.com/questions/66062509/sales-order-line...

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

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115 views

1 answer

python - How to build a Credit scoring using scorecardpy

I'm using a library scorecardpy to come up with scores. I'm using xgboost classifier but i'm getting an ... .com/questions/66062386/how-to-build-a-credit-scoring-using-scorecardpy...

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

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913 views

1 answer

localhost - angular app wont run on port 4200 after installing angular univesral

so ive added angular univesral to my app and it caused it not to work on local host 4200 (ng serve ... /angular-app-wont-run-on-port-4200-after-installing-angular-univesral...

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

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241 views

1 answer

.net - How to implement and run the collection of tasks sequentially + in parallel?

I have a list of Tasks, where each element represents async Task method call. When I construct this list - ... to-implement-and-run-the-collection-of-tasks-sequentially-in-parallel...

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

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406 views

1 answer

laravel - Bleaching the page when submitting the form with livewire

In login form i used livewire and when i out focus of phone field my webpage its been white please help ... /66062222/bleaching-the-page-when-submitting-the-form-with-livewire...

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

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366 views

1 answer

android - keytool error java.io.filenotfoundexception (access is denied)

I am using Windows 10 Home, I did run the cmd as administrator and still getting the error " ... questions/66062087/keytool-error-java-io-filenotfoundexception-access-is-denied...

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

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814 views

1 answer

visualization - Circular layout with edge bundling and labels in graph-tool

I am very new to graph visualizations and software like graph-tool (gt). My main field is mathematics, but ... 66062025/circular-layout-with-edge-bundling-and-labels-in-graph-tool...

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

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137 views

1 answer

json - html form autocomplete from database in 2021

There are many articles regarding how to autocomplete some input and related form widgets. The goal is to ... com/questions/66061879/html-form-autocomplete-from-database-in-2021...

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

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236 views

1 answer

node.js - NodeJS SQLite - Async Awaits and Db connections

I am trying to connect to SQLite database using NodeJS. I have authored the below code. var sqlite3 = ... .com/questions/66062088/nodejs-sqlite-async-awaits-and-db-connections...

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

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154 views

1 answer

html - How to properly use an autocomplete input field based on a database source in Vue?

I want to use an input field (or something similar) that suggests an autocomplete, based on records from a data ... -an-autocomplete-input-field-based-on-a-database-source-in-vu...

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

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167 views

1 answer

Android: How to copy values from one column to a new column in Android table layout before updating the table

I am very new to Android app development. I want to maintain a copy of a col to a new col before updating the ... copy-values-from-one-column-to-a-new-column-in-android-table-lay...

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

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