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c# - To loop through list and serialize it's individual data into JSON

Below is my code to get the values, List<object> modified_listofstrings = new List<object>(); List<string> ... help will be greatly 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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How to round up a floating variable in c upto 2/3/4....n digits precision without using <math.h> and printf(".n%f")

float f = 2.8386483,g ; //Suppose I am having f = 2.8386483..... I want to store k = 2.8.... to n ... / g = 2.838 to 3 decimal precision/n=3 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 more than 5 items create new div

I am using PHP and MYSQL. here is my code <?php $result = mysql_query("SELECT * FROM `item` order by ` ... rest items? many 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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c++ - Access index of current element in range-for loop c++20

In a pre-c++20 question Access index in range-for loop (answer), it was mentioned that 2020 note: It would ... , it's worth finding a solution) See Question&Answers more detail:os...

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

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Clipboard data sort in VB.NET

I have a form in which I need to sort text from the clipboard into the appropriate fields. Essentially, I copy ... I'd greatly appreciate 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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find_if in set in C++: unresolved overloaded function type

I have used find_if before with lists and vectors in C++ and it has worked fine. But now, when I try to ... me understand where is the problem? See Question&Answers more detail:os...

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

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reporting services - Convert Crystal Reports formula to SSRS expression

IF {Field_A} = 0 THEN 0 ELSE (({Field_B} / {Field_A})*100) I am trying to convert this formula to an SSRS ... seem to get it to run correctly. See Question&Answers more detail:os...

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

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laravel - Class AppHttpControllersPostConstroller does not exist

Hello I try to create post with Laravel, but I have this error : Class AppHttpControllersPostConstroller does not ... for leave this error? See Question&Answers more detail:os...

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c++ - how to create LLL of char arrays

it seems like every guide is how to create LLL with ints, but I'm having trouble using char pointers. when i run ... ); head = head->next; } 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 - Validate XSD with XML

I want to know how to validate XML with XSD . XML is not of an element type but a complex type . ... . Kindly post your suggestions in java See Question&Answers more detail:os...

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

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mysql - How to make multiple LEFT JOINs with OR fully use a composite index?

I am working on a timekeeping system and trying to determine that for each person, are they early or late for ... and the result is also 52. See Question&Answers more detail:os...

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

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parsing - parse XML string .net

I have the following XML string that I need to parse(break). Any body know what is the code to be ... #4840</ORG> </SystemGenerator-Document> 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 - I want to use fillna Mean to fill the missing value. I want to do that according to product Id

product_ID Prodcut_Price Product_monthly_sale 1 24 2000.00 1 Nan 2500.00 1 26 Nan 1 28 2700.00 2 25 ... product_sale column based on product_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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converting json file into R/text file without execution

Rstudio has crashed while working and the unsaved files were not able to be loaded into the ... hgu133aENSEMBL[mappedkeys(hgu133aENSEMBL)] See Question&Answers more detail:os...

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

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vb.net - Authorization Code Grant return invalid_grant

I am trying to implement DocuSign OAuth by Authorization Code Grant. Firstly what I am trying to do: Make GET ... what i am 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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c# - Why are parallel tasks not running?

I have this code, it is the skeleton of larger functionality stripped down to prove the problem: var tasks = ... 's related to Task.Delay? See Question&Answers more detail:os...

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

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delphi - how to return TByteDynArray in SqlServerMethod DataSnap Server

I have a DataSnap Server with a Server method like this: function TServerMethods1.Get_Excel_History(key: string): ... Thank you 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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java - How I can convert BufferedImage to a byte array without using files

I'm trying to convert a BufferedImage to an array of bytes but I get every time an exception I have a ... do this conversion without using files 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 - Using a variable in a class name?

so I have some namespaces defined and I wand to instance new objects like this: $this->controller = new ... can I make this work? 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: How to call class method from imported module? "Self" argument issue

I have 2 files. I know how to call a function, but cant understand how properly to call a method from imported ... prepare" inside of a class. See Question&Answers more detail:os...

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

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Google VM instance not opening with SSH

We are unable to connect to Google VM instance through SSH using Open in browser Window option. It is keep ... screen and not moving forward. See Question&Answers more detail:os...

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

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mysql - Cannot save data to database Python

I have a table called category TABLES["category"] = (""" CREATE TABLE category ( category_id INTEGER NOT NULL ... ) cursor = cnx.cursor() See Question&Answers more detail:os...

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

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rest - Yii2 RESTful relational data

I am having some trouble getting the Yii2 RESTful API returning relational data. I have this working when viewed through ... $query, ]); } } 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# Immutability and Equality

I'm trying to create and use only immutable classes where all fields are readonly immutable types, though there ... MD5 be worth exploring ? See Question&Answers more detail:os...

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

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reactjs - React Native display simple Json Data

I am trying to create a simple page, in which I want to display the data i get from the Json file. Unfortunately ... :37" } } 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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windows - Expect Script Telnet email script

Trying to use Expect Script the Active TCL in Windows to send an email out every it is run. Below is the code I ... on what is wrong here???? See Question&Answers more detail:os...

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

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regex - How to find substring from string in R?

If my string is a DNA sequence, x<-"TATAATGCAACGAGGGGCATAATTATATATGCCCAAAATCTGATATAATGACCGGGTAG" I want to extract substring ... my query. 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 - PhpStorm - Wrong icon for language

I just updated my PhpStorm to the latest version (2017.1.2) but when I open my current project (Laravel) ... the programming language to C? See Question&Answers more detail:os...

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

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