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I found some article how to return view to string in ASP.NET, but could not covert any to be able to run it ... got converted, or another way that can do it. Question&Answers:os...

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

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algorithm - Creating all possible k combinations of n items in C++

There are n people numbered from 1 to n. I have to write a code which produces and print all different ... n. Please explain the algorithm used for that. Question&Answers:os...

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

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filesize - How can I get a file's size in C++?

This question already has answers here: Question&Answers:os...

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

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How to read an entire file to a string using C#?

What is the quickest way to read a text file into a string variable? I understand it can be done in several ... I was looking for a method with minimal coding. Question&Answers:os...

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

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rest - Spring Resttemplate exception handling

Below is the code snippet; basically, I am trying to propagate the exception when the error code is anything other ... What would then be the purpose of codes? Question&Answers:os...

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

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python - How to write PNG image to string with the PIL?

I have generated an image using PIL. How can I save it to a string in memory? The Image.save() method ... like to have several such images stored in dictionary. Question&Answers:os...

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

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reactjs - React Router v4 - How to get current route?

I'd like to display a title in <AppBar /> that is somehow passed in from the current route. In React Router v4 ... custom title from a custom prop on <Route />? Question&Answers:os...

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

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How can I display just a portion of an image in HTML/CSS?

Let's say I want a way to display just the the center 50x50px of an image that's 250x250px in HTML. ... seems to only work when used with absolute positioning. Question&Answers:os...

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

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What is "The Best" U.S. Currency RegEx?

A quick search for currency regex brings up a lot of results. The problem I have in choosing one is that regex is ... A sequence of digits ranging from 0 to 9. Question&Answers:os...

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

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browser - "Silent" Printing in a Web Application

I'm working on a web application that needs to prints silently -- that is without user involvement. What's the ... a trusted site list, install an addon, etc. Question&Answers:os...

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

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python - Let JSON object accept bytes or let urlopen output strings

With Python 3 I am requesting a json document from a URL. response = urllib.request.urlopen(request) The response ... urlopen or json.load to give an encoding? Question&Answers:os...

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

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python - Is there a way to pass optional parameters to a function?

Is there a way in Python to pass optional parameters to a function while calling it and in the function ... "only if the optional parameter is passed" Question&Answers:os...

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

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javascript - Is there a way to add/remove several classes in one single instruction with classList?

So far I have to do this: elem.classList.add("first"); elem.classList.add("second"); elem.classList.add("third") ... if there's any native way to add or remove. Question&Answers:os...

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

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How to put labels over geom_bar for each bar in R with ggplot2

I've found this, How to put labels over geom_bar in R with ggplot2, but it just put labels(numbers) ... some information, but cannot make it work. Suggestions? Question&Answers:os...

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

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Why is semicolon allowed in this python snippet?

Python does not warrant the use of semicolons to end statements. So why is this (below) allowed? import pdb; pdb.set_trace() Question&Answers:os...

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

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java - Does a finally block always run?

Is there any condition where finally might not run in java? Thanks. Question&Answers:os...

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

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703 views

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python - csv.Error: iterator should return strings, not bytes

Sample.csv contains the following: NAME Id No Dept Tom 1 12 CS Hendry 2 35 EC Bahamas 3 21 IT Frank 4 61 EE And ... the file in text mode?) How can I fix it? Question&Answers:os...

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

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362 views

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javax.imageio - How to get image height and width using java?

Is there any other way besides using ImageIO.read to get image height and width? Because I encounter an issue that ... I suspect that it is a Sun bug. Question&Answers:os...

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

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390 views

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inheritance - C++ cast to derived class

How can i cast to a derived class? The below approaches all give the following error: Cannot convert from BaseType ... *) & m_baseType; // gives same error Question&Answers:os...

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

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Is the list of Python reserved words and builtins available in a library?

Is the list of Python reserved words and builtins available in a library? I want to do something like: from x ... if x in reserved_words_and_builtins: x += '_' Question&Answers:os...

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

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PHP: How to remove specific element from an array?

How do I remove an element from an array when I know the element's value? for example: I have an array: ... items, for this example strawberry, from the array. Question&Answers:os...

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

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java - RegEx to split camelCase or TitleCase (advanced)

I found a brilliant RegEx to extract the part of a camelCase or TitleCase expression. (?<!^)(?=[A-Z]) It ... chars). Any idea on how to improve this regex? Question&Answers:os...

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

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pdf - Detecting browser print event

Is it possible to detect when a user is printing something from their browser? To complicate matters, if we are ... works for internet explorer (6 or later) Question&Answers:os...

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

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707 views

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c++ - OpenCV get pixel channel value from Mat image

Maybe I'm not looking hard enough, but everything seems to want me to use an array. Thus, how do I get the ... is something like Mat foo = imread("bar.png")? Question&Answers:os...

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

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Can't import my own modules in Python

I'm having a hard time understanding how module importing works in Python (I've never done it in any other ... is a module: ImportError: No module named myapp Question&Answers:os...

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

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270 views

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What's the de-facto way of reading and writing files in Rust 1.x?

With Rust being comparatively new, I've seen far too many ways of reading and writing files. Many are ... readability covers all possible errors doesn't panic Question&Answers:os...

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

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331 views

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windows - Ruby 2.0.0p0 IRB warning: "DL is deprecated, please use Fiddle"

I just uninstalled my older versions of Ruby, removed all of my gems (including Rails), and installed Ruby 2 ... a Windows machine. What does this message mean? Question&Answers:os...

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

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284 views

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Android: Access child views from a ListView

I need to find out the pixel position of one element in a list that's been displayed using a ListView. It ... the position in the list that the ListView uses. Question&Answers:os...

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

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