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python - How to select a specific input device with PyAudio

When recording audio via PyAudio, how do you specify the exact input device to use? My computer has two ... the devices they refer to? See Question&Answers more detail:os...

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

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730 views

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iterator - is it possible to filter on a vector in-place?

I'd like to remove some elements from a Vec, but vec.iter().filter().collect() creates a new vector with ... an extra capacity of the vector). See Question&Answers more detail:os...

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

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linux - What is path //, how is it different from /

We know root directory is /, and according to posix, there is another directory // which differs from /. When you ... me. Anyone got an answer? See Question&Answers more detail:os...

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

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What are the differences between perl and java regex capabilities?

What are the differences between perl and java with regard to what regular expression terms are supported? ... variable length look-behinds. 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: optimal search for substring in list of strings

I have a particular problem where I want to search for many substrings in a list of many strings. The ... just that slow relatively speaking? See Question&Answers more detail:os...

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

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718 views

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c# - Call Method in Master Page

I have a public method in my asp.net Master Page. Is it possible to call this from a content page and if so what are the steps/syntax? See Question&Answers more detail:os...

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

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r - Transpose a List of Lists

I have a list which contains list entries, and I need to transpose the structure. The original structure is ... idiomatic way of doing 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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c# 3.0 - Difference between Automatic Properties and public field in C# 3.0

I failed to understand why auto implemented property language feature exist in C# 3.0. What the difference it is ... FirstName { get; set; } See Question&Answers more detail:os...

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

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Excel Date Formatting

I have a large imported csv file containing American Dates in a column. I want to change these dates to UK ... column will do the conversion? See Question&Answers more detail:os...

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

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Android "Hello, MapView" Tutorial - Map Tiles Do Not Load

I am new to Android software development and new to this site. I am hoping someone might have some experience ... that would help. 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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html - Why certain DOCTYPE declarations cause 100%-height tables and divs to stop working?

It seems to me that some DOCTYPE declarations in IE (6-8) may cause the browser to ignore height="100%" on tables ... it?, is it well known? See Question&Answers more detail:os...

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

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748 views

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jQuery behaving strange after page refresh (F5) in Chrome

I have a script, that works fine in FireFox, IE, but not in Chrome after F5 refresh only! It does work in ... problem isn't there, any ideas? 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++ - Why are the return values of these doubles -1.#IND?

I have : double score = cvMatchContourTrees( CT1, CT2, CV_CONTOUR_TREES_MATCH_I1, 0.0 ); cout<<score<<endl; There are ... ? How do I solve it? See Question&Answers more detail:os...

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

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Convert millisecond String to Date in Java

i have a String x = "1086073200000" . This is basically millisecond which I need to convert to a Date. ... preserve the entire String. 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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javafx - Drag and Drop working differently in Java 11 vs Java 8

I wrote a program which makes use of drag and drop in javafx. In JavaFX8 it works perfectly. In JavaFX11, the drag ... ,"MARTIN","JACKSON" }; } 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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r - Display row names in a data.table object

Reference: While trying to answer this very basic question, I suddenly realized that I wasn't able to ... # <pointer: 0x0000000000200788> See Question&Answers more detail:os...

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

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489 views

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How can I suppress the creation of a plot while calling a function in R?

I am using a function in R (specifically limma::plotMDS) that produces a plot and also returns a useful value. ... the plot that it creates? See Question&Answers more detail:os...

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

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575 views

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javascript - jQuery animate and property values in percentage

I trying to animate a div and I try to use some value retreived somewhere else, I know the value to be correct ... {width: percentage}, 3000); } See Question&Answers more detail:os...

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

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472 views

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Best way to protect Excel VBA code?

I've put together a simple Excel database that performs a few macro functions and I need to distribute this ... by the 'children' databases? See Question&Answers more detail:os...

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

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583 views

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c# - Using Custom Cursor WinForms

Is there a way to use a custom cursor in winforms? There seems to be no option. But when I try to manually ... from type byte[] to Cursor. See Question&Answers more detail:os...

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

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1.2k views

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swift - iOS 11 Floating TableView Header

Have an app going with multiple sections, a few rows per section when "expanded", none when "collapsed". Each ... there's that. Any ideas? See Question&Answers more detail:os...

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

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418 views

1 answer

How can I parse free-text time intervals in Python, ranging from years to seconds?

I would like to parse free-text time intervals like the following, using Python: 1 second 2 minutes 3 hours 4 days ... "2 months" as 2 minutes). See Question&Answers more detail:os...

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

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738 views

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android - Count subscribers of a topic in Firebase Cloud Messaging

What I want to do with my app is this: users can select different interests and as soon as there are more ... people have subscribed to a topic? See Question&Answers more detail:os...

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

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496 views

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Can I Allocate a specific memory address using pointers in c++?

Can I Allocate a specitic memory address using pointers in c++ ? For example: Allocate This memory address 25D4C3FA and put 4 in it. See Question&Answers more detail:os...

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

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1.3k views

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jvm - Java seems to ignore -Xms and -Xmx options

I'd like to run a very simple bot written in java on my VPS. I want to limit jvm memory to let's say ... write the program, not the JVM itself. See Question&Answers more detail:os...

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

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737 views

1 answer

amd processor - Android Studio emulator and AMD CPU

I can't run my app on standard Nexus 5 emulator. It seems it requires Intel HAXM but i have an AMD ... Intel processor (or installing Linux)? See Question&Answers more detail:os...

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

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606 views

1 answer

python - cannot override sys.excepthook

I try to customize behavior of sys.excepthook as described by the recipe. in ipython: :import pdb, sys, ... my python 2.5 installation. See Question&Answers more detail:os...

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

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673 views

1 answer

html - How to change cursor color without changing text color?

I want to have the cursor #FFF while my font is #000. Is that possible? See Question&Answers more detail:os...

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

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