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bash - Parse JSON to array in a shell script

I'm trying to parse a JSON object within a shell script into an array. e.g.: [Amanda, 25, http:// ... right side and not the entire line. See Question&Answers more detail:os...

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r - Plotting during a loop in RStudio

I am implementing a solution to the Traveling Salesman Problem (TSP) in R (simulated Annealing) and I want ... , consider this question solved. See Question&Answers more detail:os...

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scipy - How can I install something on Travis CI without a timeout?

I am trying to test a package build on travis-ci.org, but am coming up against a timeout with pip install ... .11 on Travis without a timeout? See Question&Answers more detail:os...

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How to cut decimal off without rounding in C

How do I cut off decimal places in C without rounding? For example if the number is 4.48 it will just show 4.4 %.1f rounds to 4.5 See Question&Answers more detail:os...

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java - Running a method when closing the program?

I need to execute a method, (a method which creates a file), when I exit my program, how would I do this? See Question&Answers more detail:os...

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z3 - K-out-of-N constraint in Z3Py

I am using the Python bindings for the Z3 theorem prover (Z3Py). I have N boolean variables, x1,.., ... efficient than expressing it manually. See Question&Answers more detail:os...

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gd - Cropping image in PHP

I'd like crop an image in PHP and save the file. I know your supposed to use the GD library but i'm not sure how. Any ideas? Thanks See Question&Answers more detail:os...

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c++ - What's the difference between type(myVar) and (type)myVar?

I'm going through the full tutorial at cplusplus.com, coding and compiling each example manually. Regularly, I ... way rather than the other? See Question&Answers more detail:os...

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Skipping outputs with anonymous function in MATLAB

Say I want to create an anonymous function from a m-file-function that returns two outputs. Is it ... second output%,cellArray1,cellArray2) See Question&Answers more detail:os...

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asp.net mvc - How can I RedirectToAction within $.ajax callback?

I use $.ajax() to poll an action method every 5 seconds as follows: $.ajax({ type: 'GET', url: '/ ... "AnotherAction", but it's not rendering. See Question&Answers more detail:os...

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unit testing - Dependency Injection: Turtles all the way down?

So I'm wondering about how unit testing works in regards to dealing external dependencies. Here and elsewhere I've ... do I test that unit? See Question&Answers more detail:os...

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regex - Why doesn't Python's `re.split()` split on zero-length matches?

One particular quirk of the (otherwise quite powerful) re module in Python is that re.split() will never ... regex flavors behave like this? See Question&Answers more detail:os...

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java - OffsetDateTime.now() requires API 26

I need to use method setStartTimestamp(OffsetDateTime startTimestamp) but my minSdk is 21 so it shows me Call ... OffsetDateTime on lower apis? See Question&Answers more detail:os...

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python - How to filter a pandas dataframe based on the length of a entry

In a pandas dataframe I have a field 'amp' that should be populated by a list of length 495. Is there ... KeyError: False Thanks in advance. See Question&Answers more detail:os...

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Rails segmentation fault when starting server?

Trying to get my rails 3 environment up and running and I keep encountering an error I can't get around. Any help would be ... ---------------- See Question&Answers more detail:os...

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How to manage maven settings.xml on a shared jenkins server?

I have a Jenkins cluster that is shared by several teams, that I can configure build jobs on, However i ... handling this type of situation? See Question&Answers more detail:os...

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c# - Garbage Collection should have removed object but WeakReference.IsAlive still returning true

I have a test that I expected to pass but the behavior of the Garbage Collector is not as I presumed: ... or explanation for this behavior? See Question&Answers more detail:os...

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What is the difference between Switch-Case and If-Else in PHP?

I'm deciding whether to use if/else vs switch/case in a PHP site that I am writing and I was wondering if ... to be used rather than the other. See Question&Answers more detail:os...

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javascript - How can I display a messagebox in ASP.NET?

I want to show a message box on the successful save of any item. I googled it and tried different solutions, ... using Firefox, if that matters) See Question&Answers more detail:os...

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android - VideoView not playing Video from desired position

i am using VideoView and seek bar but when i seekTo(..) on desired position through seekBar it play video ... { mVideoView.seekTo(progress); } See Question&Answers more detail:os...

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java - How can I perform a case-insensitive filter on a JTable?

I am making a table with a text field below it where you can type in a word to filter the table ... .setRowFilter(RowFilter.regexFilter(text)); See Question&Answers more detail:os...

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sql - Postgres function returning table not returning data in columns

I have a Postgres function which is returning a table: CREATE OR REPLACE FUNCTION testFunction() RETURNS TABLE(a ... return data as columns? See Question&Answers more detail:os...

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assembly - How to produce a minimal BIOS hello world boot sector with GCC that works from a USB stick on real hardware?

I have managed to produce a minimal boot sector that works with QEMU 2.0.0 Ubuntu 14.04 ... /cirosantilli/d47d35bacc9be588009f#file-lenovo-t400 See Question&Answers more detail:os...

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php - What does bind_param accomplish?

I'm learning about avoiding SQL injections and I'm a bit confused. When using bind_param, I don't ... or more protected. Bind_param explanation See Question&Answers more detail:os...

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c# - Comparing two objects .

If i have a complex object, what is the best practice pattern to write code to compare 2 instances to see if they are the same See Question&Answers more detail:os...

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uiview - iOS - Push viewController from code and storyboard

I have this code PlaceViewController *newView = [self.storyboard instantiateViewControllerWithIdentifier:@"PlaceView"]; [ ... anything. Thanks See Question&Answers more detail:os...

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IIS URL Rewrite not working with query string

I thought this was pretty straightforward, but it refuses to work. The old URL is http://www.site.com/?q= ... it doesn't redirect. Any thoughts? See Question&Answers more detail:os...

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c++ - Portable end of line (newline)

It's been an unpleasant surprise that ' ' is replaced with " " on Windows, I did not know that. (I am ... program doing the text file I/O. See Question&Answers more detail:os...

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

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