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io - Why are the elements of an array formatted as zeros when they are multiplied by 1/2 or 1/3?

I'm writing out the elements of an array as follows: write(6,'(i4,200(1x,e15.7))')Jtot0, (a*PJjv(i,Jtot0,j ... I'm obligated to multiply by a factor of 1/3? Question&Answers:os...

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

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Edit, save, self-modifying HTML document; format generated HTML, JavaScript

Motivation: https://stackoverflow.com/questions/28120689/create-self-modifying-html-page-on-box Bug: String escaping , formatting ... </script> </body> </html> Question&Answers:os...

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

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python - calculating direction of the player to shoot pygame

This is my player class class Player: def __init__(self, image): self.rotation_angle = 0 def rotate(self, ... the direction for bullet? Thanks for any help. Question&Answers:os...

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

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macos - How can I Remove .DS_Store files from a Git repository?

How can I remove those annoying Mac OS X .DS_Store files from a Git repository? Question&Answers:os...

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

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asp.net mvc - Visual Studio debugging/loading very slow

I'm at wit's end. Visual Studio is typically painfully slow to debug or just plain load ("start without ... annoying to wait two minutes for every page load. Question&Answers:os...

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

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javascript - Difference between JSON.stringify and JSON.parse

I have been confused over when to use these two parsing methods. After I echo my json_encoded data and retrieve it back ... is what I am unsure about? } }); Question&Answers:os...

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

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ruby on rails - What is the best method of handling currency/money?

I'm working on a very basic shopping cart system. I have a table items that has a column price of ... as handling currency in the Rails framework is concerned? Question&Answers:os...

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

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Scala: Abstract types vs generics

I was reading A Tour of Scala: Abstract Types. When is it better to use abstract types? For example, abstract class ... class Buffer[T] { val element: T } Question&Answers:os...

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

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php - URL rewriting : css, js, and images not loading

I've following rule for .htaccess Options +FollowSymLinks RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} -f ... and let us use "relative paths"? Question&Answers:os...

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

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How to find the index of an element in an array in Java?

I am looking to find the index of a given element, knowing its contents, in Java. I tried the following example, which ... this and what I need to do to fix it? Question&Answers:os...

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

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typescript - Angular 2 - Return data directly from an Observable

I've been banging my head against this one trying to figure it out, and no amount of documentation I've been ... don't really want to start messing with that. Question&Answers:os...

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

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php - Replace Mcrypt with OpenSSL

currently we have a mcrypt implentation on our systems to crypt some sensible data in our PHP application. Now we ... does it work Maybe any ideas now? Thanks! Question&Answers:os...

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

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java - How to parse json parsing Using GSON in android

I am using GSON for parse Json data. My Json data is below: { "count": "12", "colbreak": 1, "name" ... : Expected BEGIN_OBJECT but was NAME at line 1 column 73 Question&Answers:os...

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

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c - Is accessing a global array outside its bound undefined behavior?

I just had an exam in my class today --- reading C code and input, and the required answer was what will ... have a random value as Vyktor has pointed out. Question&Answers:os...

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

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What's wrong with the jQuery live method?

The live() method was deprecated in jQuery 1.7. The jQuery docs now recommend Use .on() to attach event ... anything bad happen if I continue to use live? Question&Answers:os...

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

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c# - Random number generator with no duplicates

Basically I'm creating a program to randomly generate 6 unique lottery numbers so there is no duplicates in the ... each number unique???? Thanks in advance Question&Answers:os...

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

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sql server - T-SQL - Insert Data into Parent and Child Tables

Code: CREATE TYPE dbo.tEmployeeData AS TABLE ( FirstName NVARCHAR(50), LastName NVARCHAR(50), DepartmentType NVARCHAR ... table. Any help would be appreciated. Question&Answers:os...

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

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android - Which is the best way to add a button?

I'm new to android development. I've a doubt. I know that you can add a button and initialize it like ... use @string resource instead of a hard-coded one. Question&Answers:os...

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

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615 views

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operators - Short-circuit evaluation on C

I'm studying C from A Book on C by Kelley-Pohl, and there's this exercise that I don't understand: int a = 0, b = 0, x ... 777 0 778 778 1 but it is 0 0 0 0 0 1 Question&Answers:os...

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

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python/matplotlib - multicolor line

I am trying to create a colored line with certain conditions. Basically I would like to have the line colored ... float. Works perfect with scatter(). Thanks Question&Answers:os...

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

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122 views

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What's the best way to do string building/concatenation in JavaScript?

Does JavaScript support substitution/interpolation? Overview I'm working on a JS project, and as it's getting bigger, ... library? If not, what can I use? Question&Answers:os...

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

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automated tests - Karate: Is there a http-request hook in karate, that gets called automatically after every API call, and whose behaviour I can modify?

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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javascript - Instead of using prefixes I want to ask site visitors to upgrade their browser

I'm re-building a site using CSS flexbox. In checking browser compatibility, I see that flexbox is supported by all modern ... message here </div> <![endif]--> Question&Answers:os...

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

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177 views

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java - Wrong ordering in generated table in jpa

This (should) be a rather simple thing to do, however I am struggling. I want a table to be generated like this ... .name + " " + this.organizationNumber; } } Question&Answers:os...

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

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MySql Error: Can't update table in stored function/trigger because it is already used by statement which invoked this stored function/trigger

I am running a MySQL Query. But when a new row is added from form input I get this error: Error: Can't update ... bname, 2 ) ) ) What does this error mean? Question&Answers:os...

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

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306 views

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python - Pandas: Converting to numeric, creating NaNs when necessary

Say I have a column in a dataframe that has some numbers and some non-numbers >> df['foo'] 0 0.0 1 ... I get ValueError: could not convert string to float: - Question&Answers:os...

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

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list - Variable assignment and modification (in python)

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

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108 views

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performance - How are x86 uops scheduled, exactly?

Modern x86 CPUs break down the incoming instruction stream into micro-operations (uops1) and then schedule these uops out ... uops_dispatched_port_port_0 ( +- 0.50% ) 1,241,118,197...

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

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