OStack Q&A-Knowledge Sharing Community

0 votes

147 views

1 answer

I know the KEYS command, but that only returns the keys (I'm guessing all of the keys with type String), ... http://redis.io/topics/data-types See Question&Answers more detail:os...

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

0 votes

584 views

1 answer

python - Matplotlib Errorbar Caps Missing

I'm attempting to create a scatter plot with errorbars in matplotlib. The following is an example of what my ... that needs to be overwritten? See Question&Answers more detail:os...

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

0 votes

547 views

1 answer

cmd - How to run a command in the background on Windows?

In linux you can use command & to run command on the background, the same will continue after the shell is ... something like that for windows See Question&Answers more detail:os...

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

0 votes

662 views

1 answer

c# - How can I test for negative zero?

Initially I thought Math.Sign would be the proper way to go but after running a test it seems that it treats -0.0 and +0.0 the same. See Question&Answers more detail:os...

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

0 votes

581 views

1 answer

c# - How do I make a form modal in Windows Forms?

I'm trying to create a child form that helps the user to enter data for a field in the parent form. I want this ... type of item I need to use? See Question&Answers more detail:os...

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

0 votes

196 views

1 answer

Is it reasonable to assume my visitors have javascript enabled?

I understand that server-side validation is an absolute must to prevent malicious users (or simply users who choose to ... for those who don't? See Question&Answers more detail:os...

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

0 votes

460 views

1 answer

configuration - How do I include a php.ini file in another php.ini file?

How do I include a php.ini file in another php.ini file? See Question&Answers more detail:os...

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

0 votes

114 views

1 answer

Javascript Submit does not include Submit Button Value

Ok, this is less of a question than it is just for my information (because I can think of about 4 different ... to me. Thanks in advance. See Question&Answers more detail:os...

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

0 votes

343 views

1 answer

javascript - Does .sort function change original array?

I have that code: arr = arr.sort(function (a, b) { return a.time>b.time }) Do I need to ... and filter functions change the original array? See Question&Answers more detail:os...

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

0 votes

530 views

1 answer

compiler warnings - Boolean expression order of evaluation in Java?

Suppose I have the following expression String myString = getStringFromSomeExternalSource(); if (myString != null ... evaluation not guaranteed? See Question&Answers more detail:os...

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

0 votes

192 views

1 answer

c++ - Multiple Inheritance from two derived classes

I have an abstract base class which acts as an interface. I have two "sets" of derived classes, which ... am still open to suggestions. See Question&Answers more detail:os...

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

0 votes

219 views

1 answer

python - How do comparison operators < and > work with a function as an operand?

Ran into this problem (in Python 2.7.5) with a little typo: def foo(): return 3 if foo > 8: ... >>> (9e9).__lt__(foo) NotImplemented See Question&Answers more detail:os...

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

0 votes

402 views

1 answer

asp.net - Cannot use a leading ../ to exit above the top directory

I have a asp.net web site with it we have admin area with login page for admin only and all site is allowed ... users="*" /> </authorization> See Question&Answers more detail:os...

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

0 votes

250 views

1 answer

Is it possible to merge iterators in Java?

Is it possible to merge iterators in Java? I have two iterators and I want to combine/merge them so that I could ... sUsers.next(); ..... } See Question&Answers more detail:os...

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

0 votes

368 views

1 answer

Flatten nested arrays in java

I want to flatten nested arrays like: [[[1],2],[3]],4] -> [1,2,3,4] manually in java I can't ... script guide but it doesn't get a solution See Question&Answers more detail:os...

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

0 votes

760 views

1 answer

batch file - echo -e equivalent in Windows?

Is there any Linux "echo -e" equivalent in windows so I can use "echo -e xnnn" to print out the ... code is the hexadecimal value nnn ? See Question&Answers more detail:os...

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

0 votes

649 views

1 answer

git - Deploy a Python (Dash) app to Heroku using Conda environments (instead of virtualenv)

When I run git push heroku master to deploy my app to Heroku I keep getting errors Heroku Push rejected, ... to Heroku using Conda environments? See Question&Answers more detail:os...

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

0 votes

271 views

1 answer

ios - How do I go from SKScene to UIViewController by code?

All I want if for when the user touches a skspritenode in the skscene, it will go to a different view like ... and I am stumped. Please help. See Question&Answers more detail:os...

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

0 votes

636 views

1 answer

audio - Broadcast to Icecast / SHOUTcast with Objective-C, C, or C++

I want to provide audio data into SHOUTcast or Icecast servers without using their own broadcaster, since i ... SHOUTcast/Icecast source client? See Question&Answers more detail:os...

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

0 votes

345 views

1 answer

javascript - Changing getJSON to JSONP

I have this code: <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script ... ... Is this totally different? See Question&Answers more detail:os...

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

0 votes

464 views

1 answer

regex - Remove duplicates from text file based on second text file

How can I remove all lines from a text file (main.txt) by checking a second ... -9R5tLA ChIJ0T5e1YaYVogRifrl7S_oeM8 ChIJwWGce4eYVogRcrfC5pvzNd4 See Question&Answers more detail:os...

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

0 votes

193 views

1 answer

php - Send data from android to server via JSON

I have MySQL database server I need to update and retrieve data to/from MySQL server via JSON So, I want to ... php to connect to DB right ? See Question&Answers more detail:os...

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

0 votes

103 views

1 answer

How to create an Access database at runtime in C#?

How can I create an Access Database at runtime in C#? See Question&Answers more detail:os...

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

0 votes

558 views

1 answer

Ignore missing properties during Jackson JSON deserialization in Java

In the example class Person { String name; int age; } If the JSON object has a missing property ... fields during deserialization? Thanks See Question&Answers more detail:os...

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

0 votes

368 views

1 answer

c# - What namespace will a class have if no namespace is defined

In C#, if I create a class with no namespace, what namespace will I use when trying to instantiate the class? ... so I need to distinguish... See Question&Answers more detail:os...

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

0 votes

321 views

1 answer

sql server - Does Sql JOIN order affect performance?

I was just tidying up some sql when I came across this query: SELECT jm.IMEI , jm.MaxSpeedKM , jm.MaxAccel , ... the other 2 tables to that one See Question&Answers more detail:os...

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

0 votes

81 views

1 answer

How to use PowerShell copy-item and keep structure

I have a directory structure that looks like this: C:folderAfolderBfolderCclient1f1files C:folderAfolderBfolderCclient1f2files ... correctly. See Question&Answers more detail:os...

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

0 votes

298 views

1 answer

python - How to apply a function on every row on a dataframe?

I am new to Python and I am not sure how to solve the following problem. I have a function: def EOQ(D,p ... I hope to find something that works. 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