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transparency - Converting transparent gif / png to jpeg using java

I'd like to convert gif images to jpeg using Java. It works great for most images, but I have a simple ... gif where it's not working. 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 - Error parsing JSON file with the jsonlite package

I'm trying to read a JSON file into R but I got this error: Error in parseJSON(txt) : parse error: trailing ... this a file problem or my code? 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 - How can I schedule a Task to execute at a specific time using celery?

I've looked into PeriodicTask, but the examples only cover making it recur. I'm looking for something more like cron's ... Monday at 1 a.m." See Question&Answers more detail:os...

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

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graphics - extracting a quadrilateral image to a rectangle

BOUNTY UPDATE Following Denis's link, this is how to use the threeblindmiceandamonkey code: // the destination ... standard approach for 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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android - How to customize list preference radio button

I have customized all the radioButtons in my application but the radioButtons in the listPreference does not ... in my ListPreference See Question&Answers more detail:os...

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

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recursion - PHP - How to build tree structure list?

So, my problem is, that I want to build a tree of these 2 tables: Parent table: +-------+------ ... help me out with a recursive solution?? See Question&Answers more detail:os...

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

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string - Custom manipulator for C++ iostream

I'd like to implement a custom manipulator for ostream to do some manipulation on the next item being ... about accomplishing that? 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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python - Using OpenCV with Tkinter

I'm writing a program that needs to display a video stream in a Tkinter window. Since there will also be ... video to display in imageFrame? See Question&Answers more detail:os...

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

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swing - how to drag and drop files from a directory in java

I want to implement dragging and dropping of files from a directory such as someones hard drive but can't figure out how to ... true); } }); } } See Question&Answers more detail:os...

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

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javascript - Bootstrap modal: is not a function

I have a modal in my page. When I try to call it when the windows load, it prints an error to the console ... > How can I fix this problem? See Question&Answers more detail:os...

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

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asp.net mvc 3 - The name 'model' does not exist in current context in MVC3

I added a cshtml page in an project. When I tried to add the following declaration to it, I get an error: ... . Is there anything i am missing? See Question&Answers more detail:os...

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

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http - How does cookie "Secure" flag work?

I know that a cookie with secure flag won't be sent via an unencrypted connection. I wonder how this works in- ... cookie will be sent or not? See Question&Answers more detail:os...

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

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javascript - Why does google.load cause my page to go blank?

Well, this looks strange but I'm not able to find a solution. Why in the world does this fiddle http://jsfiddle. ... 2000); </script> </html>? See Question&Answers more detail:os...

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

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symfony - Symfony2 and Doctrine - Error: Invalid PathExpression. Must be a StateFieldPathExpression

I have an entity that looks like this: /** * @GedmoTree(type="nested") * @ORMTable(name="categories") ... in the table including the parent_id See Question&Answers more detail:os...

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

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node.js - How to close a readable stream (before end)?

How to close a readable stream in Node.js? var input = fs.createReadStream('lines.txt'); input.on('data', ... not stop the reading process... 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++ - How can I "unuse" a namespace?

One of the vagaries of my development system (Codegear C++Builder) is that some of the auto-generated headers ... ... unusing namespace xyzzy; See Question&Answers more detail:os...

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

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Why can't I get a duration in minutes or hours in java.time?

Of the Duration class in the new JSR 310 date API (java.time package) available in Java 8 and later, the ... Why was it implemented that way ? 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 - CSS: stretching background image to 100% width and height of screen?

I have an image called myImage.jpg. This is my CSS: body { background-image:url("../images/myImage.jpg"); ... is using to view the webpage? See Question&Answers more detail:os...

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

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857 views

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c# - Calling async method on button click

I created Windows Phone 8.1 project and I am trying to run async method GetResponse<T>(string url) on button ... wrong? Thanks for the help! See Question&Answers more detail:os...

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

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datepicker - How to Disable future dates in Android date picker

How to Disable future dates in Android date picker Java Code : mExpireDate.setOnClickListener(new OnClickListener() { ... How to do 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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Can onprogress functionality be added to jQuery.ajax() by using xhrFields?

As suggested here: https://gist.github.com/HenrikJoreteg/2502497, I'm trying to add onprogress functionality to my jQuery.ajax( ... ); } } } }); See Question&Answers more detail:os...

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

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ios - Core Data: Do child contexts ever get permanent objectIDs for newly inserted objects?

I have an app with two managed object contexts setup like this: Parent Context: NSPrivateQueueConcurrencyType, linked ... with this approach? See Question&Answers more detail:os...

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

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scala - How to save a spark DataFrame as csv on disk?

For example, the result of this: df.filter("project = 'en'").select("title","count").groupBy("title").sum( ... DataFrame as a csv file on disk ? 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 - Add line break to axis labels and ticks in ggplot

I'm looking for a way to use long variable names on the x axis of a plot. Of course I could use a ... solutions are welcome of course. 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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unit testing - Can't build and run an android test project created using "ant create test-project" when tested project has jars in libs directory

I have a module that builds an app called MyApp. I have another that builds some testcases for that app, called ... lang.String,java.lang.String) [javac] location: class com....

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

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364 views

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Laravel: How do I parse this json data in view blade?

Currently this is my view {{ $leads }} And this is the output {"error":false,"member":[{"id":"1"," ... ID: 10 Firstname: First Lastname: Last See Question&Answers more detail:os...

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

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407 views

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c++ - Why does this program crash: passing of std::string between DLLs

I have some trouble figuring out why the following crashes (MSVC9): //// the following compiles to A.dll ... shared_ptr with a custom deleter. See Question&Answers more detail:os...

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

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283 views

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css selectors - What does .container.31 2525 mean in CSS?

In the code below, I am wondering what the backslash might mean? I have not encounter the backslash character in the lessons ... * 0.25) */ } See Question&Answers more detail:os...

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

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