OStack Q&A-Knowledge Sharing Community

0 votes

665 views

1 answer

visual c++ - need to call a function at periodic time intervals in c++

I am writing a program in c++ where I need to call a function at periodic time intervals, say every 10ms ... there is no neat solution? Thanks! See Question&Answers more detail:os...

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

0 votes

546 views

1 answer

gcc - What does !!(x) mean in C (esp. the Linux kernel)?

I've been reading through the Linux kernel (specifically, 2.6.11). I came across the following definition: #define ... Negation in C++ code. See Question&Answers more detail:os...

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

0 votes

874 views

1 answer

math - Linear regression of arrays containing NANs in Python/Numpy

I have two arrays, say varx and vary. Both contain NAN values at various positions. However, I would like to ... not sure how it works exactly. See Question&Answers more detail:os...

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

0 votes

401 views

1 answer

Why Python `Memory Error` with list `append()` lots of RAM left

I am building a large data dictionary from a set of text files. As I read in the lines and process ... it possible to increase the allocation? See Question&Answers more detail:os...

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

0 votes

542 views

1 answer

c# - ASP.NET Session size limitation

Is there some kind of Session size limitation or advisable value to not to surpass ? In my web application I create ... is about 10-20KB max. See Question&Answers more detail:os...

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

0 votes

818 views

1 answer

c++ - Command working in terminal, but not via QProcess

ifconfig | grep 'inet' is working when executed via terminal. But not via QProcess My sample code is QProcess p1; p1 ... I tried that as well:( See Question&Answers more detail:os...

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

0 votes

210 views

1 answer

entry point - How can Android source code not have a main method and still run?

I've seen this in a few tutorials now... but how in the world can Android source code not have a main ... where to enter the program? Thanks! See Question&Answers more detail:os...

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

0 votes

347 views

1 answer

C# Is there a LINQ to HTML, or some other good .Net HTML manipulation API?

I have a C# WPF application that needs to consume data that is exposed on a webpage as a HTML table. ... utility for parsing/manipulating HTML? See Question&Answers more detail:os...

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

0 votes

514 views

1 answer

javascript - How to type some text in hidden field in Selenium WebDriver using Java

I am using WebDriver with Java for test automation. I have the following HTML code for input field which is ... some text in hidden field? See Question&Answers more detail:os...

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

0 votes

411 views

1 answer

asp.net - Which control caused the postback?

I have two buttons: <asp:Button ID="Button1" runat="server" Text="Button" /> <asp:Button ID="Button2" ... controls that can cause this postback? See Question&Answers more detail:os...

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

0 votes

420 views

1 answer

javascript - HTML prevent space bar from scrolling page

I'm using the code: window.onkeydown = function(e) { return !(e.keyCode == 32); }; which ... retain the spacebar functionality while typing? See Question&Answers more detail:os...

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

0 votes

108 views

1 answer

How to get a .csv file into R?

I have this .csv file: ID,GRADES,GPA,Teacher,State 3,"C",2,"Teacher3","MA" 1,"A",4,"Teacher1" ... headers specifically. Thanks for your help! See Question&Answers more detail:os...

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

0 votes

301 views

1 answer

javascript - How to get text node after element?

Using jQuery. I have the following html: <input type="checkbox" name='something' value='v1' /> All the world < ... can not touch the HTML... See Question&Answers more detail:os...

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

0 votes

513 views

1 answer

graphics - How to test if a line segment intersects an axis-aligned rectange in 2D?

How to test if a line segment intersects an axis-aligned rectange in 2D? The segment is defined with its two ... -left and bottom-right points. See Question&Answers more detail:os...

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

0 votes

449 views

1 answer

mysql - How to pass a variable to a IN clause?

Lets say I have a SP that has a SELECT statements as follows, SELECT product_id, product_price FROM product WHERE ... idea how to do this? See Question&Answers more detail:os...

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

0 votes

449 views

1 answer

mysql - libmysqlclient15-dev on macs?

Does OSX need an install of libmysqlclient15-dev? I'm trying to compile a gem that is failing and a lot of ... . Am I missing something here? See Question&Answers more detail:os...

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

0 votes

203 views

1 answer

php - Where does IIS 7.5 log errors?

Where does IIS 7.5 log errors? Event Viewer? Log File? I get a very nonspecific internal 500 error. I ... logging to the C:windowsemp folder. See Question&Answers more detail:os...

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

0 votes

522 views

1 answer

uiactivityindicatorview - Is there an ActivityIndicator in WatchKit for Apple Watch?

Is there an ActivityIndicator (or something like it) in WatchKit for Apple Watch? How do you all give ... longer lasting background activity? See Question&Answers more detail:os...

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

0 votes

696 views

1 answer

android - Retrofit2: Modifying request body in OkHttp Interceptor

I am using Retrofit 2 (2.0.0-beta3) with OkHttp client in Android application and so far everything ... right direction would be appreciated. See Question&Answers more detail:os...

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

0 votes

441 views

1 answer

r - Get rid of addlinespace in kable

In a knitr/Sweave report, the kable function of knitr with the option booktabs=TRUE adds a addlinespace each ... the option booktabs=TRUE? See Question&Answers more detail:os...

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

0 votes

466 views

1 answer

php - How to solve General error: 2006 MySQL server has gone away

I'm doing an operation that inserts hundreds of records into a MySQL database. After inserting exactly 176 records I ... is with PHP. Thanks. See Question&Answers more detail:os...

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

0 votes

537 views

1 answer

cross browser - Are CSS selectors case-sensitive?

I was recently updating a CMS site and a tab-navigation plugin had inserted the following markup: <li id=" ... to my consistent code style? See Question&Answers more detail:os...

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

0 votes

217 views

1 answer

python - Split string by count of characters

I can't figure out how to do this with string methods: In my file I have something like 1.012345e0070. ... maybe I'm overlooking something? Thx See Question&Answers more detail:os...

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

0 votes

251 views

1 answer

java - How to produce JSON output with Jersey 1.6 using JAXB

@XmlRootElement public class Todo { private String s = "test"; public String getS() { return s; } public ... programming. What's wrong? See Question&Answers more detail:os...

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

0 votes

284 views

1 answer

java - Design lib - CoordinatorLayout/CollapsingToolbarLayout with GridView/listView

This might be silly question but I didn't understand Design lib well. I am following this reference to create ... Any help would be appreciated. See Question&Answers more detail:os...

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

0 votes

496 views

1 answer

jquery - Select all elements after a certain element

I have a list similar to below and would like to only select all of the elements after the #everything_after element. ... "></div> </div> See Question&Answers more detail:os...

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

0 votes

313 views

1 answer

.net - Detect change of resolution c# WinForms

is there an easy way to hook to an event that is triggered on change of global screen resolution? See Question&Answers more detail:os...

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

0 votes

766 views

1 answer

mysql - How to convert ISO8601 to Date format in php

How to convert this (in ISO8601 format): 2014-03-13T09:05:50.240Z To this (in MySQL DATE format): 2014-03-13 in php? See Question&Answers more detail:os...

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

Categories

Recent questions

Just Browsing Browsing

Most popular tags