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c++ - Where and how to define member variables? In header or implementation file?

I am currently learning C++. I have practice (about 2 years) in Java (which I learned at my university). I ... Could you please give me a hint? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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json - read mixed data into R

I have a text file ' ' separated. First two columns are text and third one is in JSON format like {type: [{ ... param1 a1 1 factor1 param1 a2 2 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Interface inheritance and derived classes

Why can't I do something like this in c# (pseudo code follows) Interface1 { Method1(); } Interface2 : Interface1 ... { Method2() { } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Uncaught ReferenceError: $_POST is not defined

I'm new in AJAX and want to send 2 IDs on an AJAX page here is my code <a href="#" id="<?php echo ... with it, which part i'm doing wrong? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to simplify this Fortran function?

I have the following code that counts the number of consecuitive logicals from the first one. I want to ... End If End Function count_present See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Why can I have an OpenGL shader class, but not a VAO class?

I have been fiddling around with making a game/rendering engine, and I have found that I can have a class for a ... ); SDL_Quit(); return 0; } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - Media Query for Large Desktop

I am working with a responsive website. I want to design for all large desktop. But I don't know the exact media query for large desktop. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - I'm trying to print out prime number but not sure what's wrong with my code

My code void printPrimes (int max) { boolean prime; for (int n = 2; n < max; n++){ prime = true; double ... prime what do I do to fix this issue See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - Weird CSS conundrum

So for some reason the following html code only responds to the notice id and not the flash or <%=key%> ... yielded content --> </section> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Create an associative array from a string

got a collection of objects which have an item called path, which has a kind of folding set by a string like: ... how to solve this in PHP? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Discord.py help command (react to edit message)

I'm trying to make a help command that if you react it changes the message (edits the message) to the next page ... commands How can I do this? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - How To split String A,B,C,D,"E,F",G,H

I want to split this String A,B,C,D,"E,F",G,H with comma(,) operator but not split the "E,F".. I want this following output. A B C D E,F G H See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to get Process name from process id in windows through C++ without enumerating process?

I need to get process name from process id in windows to find process names associated with a logged event. It ... image name from process id? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript help using html and calculator

Can someone help me to get the total price of the stock given prices below?? Using the onclick, once someone puts in ... id="input3"></p> <br See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Android app force closes when painting a ball?

I'm trying to paint a ball on the screen, but it force closes. Something is going wrong. Ball b ... .system.NativeStart.main(Native Method) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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upgrade - How can you fix server error 500, received when upgrading from Joomla 3.1.5?

While attempting to upgrade joomla using the button, I receive the server error 500. I have read this joomla forum ... t have any blank entries. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Java - What's the most efficient way of drawing large number of pixels on the screen

I've started working on a program in which I want to completely manipulate how pixels are being drawn to the ... efficient ways of doing it? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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php - Laravel withValidator() not working as expected

I have this formrequest that contains rules and a withValidator as a second layer of validation. Note: I am aware that having ... { dd("HI"); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Algorithm for distribute products to boxes

I have Products and Boxes. I want to use minimum box count for packaging. Please ignore product and box ... for all comments and replies. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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pygame - How to execute event repeatedly in Python?

I'm new to pygame programming. I need that operation increases character's speed (who is represented as moving images on ... and how to use it? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Python Regex punctuation recognition

I am stumped by this one. I am just learning regular expressions and cannot figure out why this will not ... Any help would be appreciated. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Determinant of a matrix in Fortran

I just learned Fortran recently and I am trying to compute the determinant of a matrix in Fortran. I was able to ... it.... end program main See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - logic help for smallest/largest value

I went thru so many version of the algorithm to sort smallest and largest that my brain is fried. The book up ... . Thanks for the help guys ! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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batch file - Random alphanumeric

I am trying to make a random code generator in Notepad++ that will generate a alphanumeric code that is 32 ... great and thanks in advance! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - how to refresh a particular div content when page is loading through ajax load() function

this is my html code: <body onload="fun1()"> <ul id="nav" class="nav" style="font-size:12px;"> <li> ... used to call the default page tab1.php See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c - How do I generate number pattern in triangular form

I want to print this pattern like right angled triangle 0 909 89098 7890987 678909876 56789098765 4567890987654 ... gives different pattern See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - Can we handle the error "Cannot convert the value of type BOOL to expected argument UIiew"

I am tired of trying to PopOver the view controller and searched every where, tried myself also.This issue has ... am i going wrong direction. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Ajax too slow - Recursion

A ajax code that i am using to request a page is consuming too much memory and is making the browser slow ... this problem? Thanks in advance. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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