compare

Basically I'm trying to run some code (Python 3.2) if a value on a website changes, otherwise wait for a bit and check it later. First I thought I could just save the value in a variable and compare it to the new value that was fetched the next time the script would run. But that quickly ran into problems as the value was overwritten when the script would run again and initialize that variable. So then I tried just saving the html of the webpage as a file and then comparing it to the html that would be called on the next time the script ran. No luck there either as it kept coming up False even

I want to check two images are similar or different with opencv. if they are same printf("same"); if they are not same printf("not same"); is there any method or way for that in opencv? It is not so easy task, and it is impossible to do with one if. What I recommend is to match image's interest points. Basically you can use opencv library to identify interest points on images and perform the match of them. If the percentage of the match is high enough, you can conclude that images are the same. This percentage in most cases depends of kind of images which you want to match. It means that you

scala implicit关键字详解(隐式转换函数、隐式类、隐式参数、隐式值) 一、Overview implicit 是scala中的一个关键字，关于它有着丰富的用法，使得scala更灵活和容易扩展。截止目前，scala已经来到了2.12.3版本，本篇文章把目前scala支持的 implicit 用法作了较为全面的整理，以方便在阅读scala源码的时候稍作参考。文中全部的代码和测试结果均以scala2.12.3为准。 闲话不多讲，目前可以见到的 implict 用法有如下几种： 1.隐式转换函数 implicit def int2str(x:Int):String = x.toString 2.隐式类 implicit class Box (x: Int) { } 3.隐式参数 def compare[T](x:T,y:T)(implicit ordered: Ordering[T]):Int = { ordered.compare(x,y) } 4.隐式值 implicit val x: Int = 0 5.隐式对象 implicit object obj { } 6.context bound def compare2[T: Ordering](x: T, y: T) = { val ord = implicitly[Ordering[T]] ord.compare(x,

You can pass a function pointer, function object (or boost lambda) to std::sort to define a strict weak ordering of the elements of the container you want sorted. However, sometimes (enough that I've hit this several times), you want to be able to chain "primitive" comparisons. A trivial example would be if you were sorting a collection of objects that represent contact data. Sometimes you will want to sort by last name, first name, area code . Other times first name, last name - yet other times age, first name, area code ... etc Now, you can certainly write an additional function object for

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have two strings String 1: "sebastien" String 2: "Sébastien" I want to compare these two strings by ignoring é (Accents) character. Can anyone know this logic? Thanks in advance 回答1: 回答2: Calculate the similarity between two strings with similar_text function . Before parse "é" with : See more at: http://bitprison.net/php_normalize_string_function#sthash.tMoMbaOG.dpuf 回答3: Use Normalizer PHP extension or iconv, more info: http://www.php.net/manual/en/class.normalizer.php http://www.php.net/manual/en/function.iconv.php <?php $string =

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I always think that if you want to compare two strings (but not variables) all you need to do is to quote it like that: if("${A}" STREQUAL "some string") but now I find out that this code sometimes print oops : cmake_minimum_required(VERSION 2.8) if("d" STREQUAL "") message("oops...") endif() May be it's bug (because it prints with Xcode , but not with make )? Or there is some special variables? cmake: 2.8.12, 2.8.11.2 xcode: 4.6.2, 5.0.1 Update There is command string without described problems: string(COMPARE EQUAL "${A}" "" result) if

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am using imagemagick to compare two screenshots in windows environment. https://blog.codecentric.de/en/2017/09/robot-framework-compare-images-screenshots/ *** Settings *** Library String Library OperatingSystem *** Variables *** $ { IMAGE_COMPARATOR_COMMAND } C : \\ "Program Files" \\ ImageMagick - 7.0 . 7 - Q16\\convert . exe *** Test Cases *** Image Comparison Ok Compare Images C : /Users/ user / imagecompare / Test / src / reference - screenshots / reference - 1.png C : /Users/ user / imagecompare / Test / src / test -

I have JS array with strings, for example: var strArray = [ "q", "w", "w", "e", "i", "u", "r"]; I need to compare for duplicate strings inside array, and if duplicate string exists, there should be alert box pointing to that string. I was trying to compare it with for loop, but I don't know how to write code so that array checks it`s own strings for duplicates, without already pre-determined string to compare. findDuplicates function compares index of all items in array with index of first occurrence of same item, If indexes are not same returns it as duplicate. let strArray = [ "q", "w", "w",

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Possible Duplicate: Wrapper class and == operator Hi when I am comparing Integer with == I have some problem so can you explain me why second test is success too ? @Test public void integerTest() { Integer prvni = 127; Integer druhy = 127; Integer treti = 128; Integer ctvrty = 128; assertTrue(prvni == druhy); assertTrue(treti != ctvrty); } 回答1: When using == to compare Objects, you're actually comparing the references. I.e., the reason both assertions are true is because the prvni and druhy refer to the same object while treti and ctvrty

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to compare two strings for equality in Java, when either or both could be null , so I cannot simply call .equals() . What is the best way? boolean compare(String str1, String str2) { ... } Edit: return ((str1 == str2) || (str1 != null && str1.equals(str2))); 回答1: This is what Java internal code uses (on other compare methods): public static boolean compare(String str1, String str2) { return (str1 == null ? str2 == null : str1.equals(str2)); } 回答2: Since Java 7 you can use the static method Objects.equals(Object, Object) to perform