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php - mcrypt_encrypt to openssl_encrypt, and OPENSSL_ZERO_PADDING problems

I have this mcrypt_encrypt call, for a given $key, $message and $iv: $string = mcrypt_encrypt(MCRYPT_3DES, $key, ... openssl encryption call... See Question&Answers more detail:os...

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

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discord.py - Discord API "soft-ban" for Selfbot? It can only read its own messages

So today, all of a sudden, my Discord Selfbot stopped working. It has been running for weeks without any ... changed the API for everyone. See Question&Answers more detail:os...

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

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How to clone as derived object in C++

I define two classes in C++. Ones is the base class, and one is a derived class class CBaseClass { } ... . How to implement such a feature? See Question&Answers more detail:os...

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

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Valgrind reports errors for a very simple C program

I'm learning C language from Learn C The Hard Way. I'm on exercise 6 and while I can make it work, ... How do I fix the valgrind errors? See Question&Answers more detail:os...

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

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How do the JavaScript relational comparison operators coerce types?

What rules apply for the JavaScript relational comparison operators when the operands are of different types? For ... === comparison operators. See Question&Answers more detail:os...

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

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672 views

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sql - Determine Rank based on Multiple Columns in MySQL

I have a table which has 3 fields, I want to rank column based on user_id and game_id. Here is SQL ... order of game_detail order of game_detail 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 - Swift equivalent to `[NSDictionary initWithObjects: forKeys:]`

Is there an equivalent for Swift's native Dictionary to [NSDictionary initWithObjects: forKeys:]? Say I have two ... :3] // expected result See Question&Answers more detail:os...

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

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window.onbeforeunload not working in chrome

This is the code which i used for window.onbeforeunload <head> <script> window.onbeforeunload = func; function func( ... thanks in advance..... See Question&Answers more detail:os...

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

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java - Websphere all logs are going to SystemOut.log

I am using Log4j in my application and have some appenders for debug and error. I tested this on tomcat ... inside SystemOut.log. Please 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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Sorting 2D array of strings in Java

I know that this question might have been asked before, but I was not able to find a fit answer. So say I have this ... , {"frank", "3.0"}}; 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: data.table cross-join not working

I have two data.tables that I want to join (form a Cartesian product of). One of the data.tables is keyed on ... Not sure what I am doing wrong. See Question&Answers more detail:os...

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

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java - What does an integer that has zero in front of it mean and how can I print it?

class test{ public static void main(String args[]){ int a = 011; System.out.println(a); } } Why I am getting ... ? How can I get 011 as output? See Question&Answers more detail:os...

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

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jquery - jqgrid client side sorting with server side paging - data disappears

it states in jqgrid documentation that the code below should allow local sorting with server side paging; the grid data ... Discount":"0.05"}]} 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 cannot IEnumerable<struct> be cast as IEnumerable<object>?

Why is the last line not allowed? IEnumerable<double> doubleenumerable = new List<double> { 1, 2 }; IEnumerable<string> ... <U>() to do that? See Question&Answers more detail:os...

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

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database - Oracle (ORA-02270) : no matching unique or primary key for this column-list error

I have two tables, Table JOB and Table USER, here is the structure CREATE TABLE JOB ( ID NUMBER NOT NULL ... ORA-02270 and SO related question See Question&Answers more detail:os...

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

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372 views

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database - Hyphens in column names in MySQL DB

May be this question has been answered before but I couldn't find it. I am using a 2/3 yr old MySQL ... of the character set being used ? See Question&Answers more detail:os...

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

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260 views

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Comparing Bitmap images in Android

Is there any way to check if bitmaps are the same? can someone help me out? See Question&Answers more detail:os...

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

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413 views

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c++ - How to read cin with whitespace up until a newline character?

I wish to read from cin in C++ from the current position up until a newline character into a string. The ... streambuf buf; cin >> buf; See Question&Answers more detail:os...

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

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241 views

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angular - function gets called several times

I want to display a dataList. Some values are calculate from a function. It seems angular2 calls the calculate ... just let angular2 do 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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263 views

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jquery - Dynamically adding collapsible elements

Source: http://jquerymobile.com/demos/1.0a2/#docs/content/content-collapsible.html When I add an element like this ... How can I fix 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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1.2k views

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jsf - When using @EJB, does each managed bean get its own @EJB instance?

I am using JSF 2.2 for a web project and I am implementing the login page now. I have a login.xhtml ... like this in a production environment? See Question&Answers more detail:os...

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

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158 views

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ios - Foreign key relationship mapping with RestKit

I'm totally new to RestKit and am struggling somewhat. JSON: { "teams": [ { "id": 1, "name": "Team ... , help would be very appreciated! 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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2.0k views

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rxjs - Angular Subscribe within Subscribe

I have the following code which consists of multiple subscribes. What I need to achieve is like this : Subscribe 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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java - could not set the column width to zero i.e. not made column invisible

I am trying to make one column from JTable, invisible by setting width to zero but it could not happen and it ... What is wrong with the 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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rust - How to convert a slice into an array reference?

I have an &[u8] and would like to turn it into an &[u8; 3] without copying. It should reference the original array. How can I do 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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631 views

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MySQL/PHP Error:[2002] Only one usage of each socket address (protocol/network address/port) is normally permitted

I couldn't find a solution to this already on stackoverflow, most other related topics had to do with ... users are experiencing this error. See Question&Answers more detail:os...

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

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1.7k views

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vba - Loop through Excel Sheets

I have the following Code and I would like it to run in 25 other sheets of the Workbook and instead of repeating ... Field:=1 End With End Sub See Question&Answers more detail:os...

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

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373 views

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javascript - Creating and appending detached elements with d3.create

Let's say I create a simple graphic like this: <!doctype html> <html lang="en"> <head> <script src="https://d3js ... ; </script> </body> </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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