smartwatch elegant

This article focuses on the application of delegation. Including simple definition, use, benefits of delegation, and relationship between delegation and Lambda. All knowledge points are simplified to heuristic comments, which are not difficult to understand and hope to help you. /// /// Delegate makes the Sorting Code more elegant (easy to expand and easy to maintain) /// Knowledge points included in this article: /// 1. Delegate Definition /// 2. De

This is a creation in Article, where the information may have evolved or changed. Original: Go programming tips--goroutine's elegant control GoroutineIs the most important mechanism of the go language, which Goroutine abstracts the complex asynchronous IO calls into synchronous calls, conforms to the normal sequence of human thinking, greatly simplifies the difficulty of IO programming. As with the thread, the Goroutine exit mechanism should be well c

Reduce repeated code with generics to make the code more reasonable, more elegant, and more reasonable In this scenario, you need to connect to an interface to obtain data. For example, obtaining the order list Interface request parameters (in json format ):1 {2 // public header 3 "head": {4 "method": "getOrders", // Interface method 5 "sign": "xxxx" // signature 6 }, 7 // private body 8 "body": {9 "userId": "1", // user ID10 "numPerPage": 10, // page

Record elegant pythonic code and pythonic code Record some pythonic methods that are commonly used in learning and seen on the Internet, which is only convenient for future queries. 1. List derivation: seq_list=[1,2,3,4,5]new_list=[i *2 for i in seq_list if i %2==0 ] 2. Generator expression (reduce memory usage) seq_list=(i*2 for i in range(0,1000) ) 3. Powerful built-in function zip, which can traverse two iteratable objects. It is particularly usefu

!" "); $(". Dialog-delorder"). Remove (); }); Dialogele.find (' A.console-btn-cancel,a.dialog-close '). Click (function () { $(". Dialog-delorder"). Remove (); }); }, Wartip:function(TXT) {varTPL = [ ' , ' , Prompted, ' , ' , ' , ' , ' , ' , ' , ' , ' ].join (‘‘); varDialogele = $ (TPL). AppendTo ('

There is a need to set a default value for a class todayThe first code is as follows:Class myClass def __init__ (self,datalen=none,times=None): if datalen = = None := 1024x768 else : = datalen if times = = None := 1024*1024 else : = timesBut this is too not python, simple modification as follows, is not looking much better? def __init__ (self,datalen=none,times=None): if is not Else 1024x768

Looping over a range of numbersBad: for inch [0,1,2,3,4,5]: Print i**2Good: for in range (6): Print i**2Looping over a collection:Bad:' Red ','green','blue','yellow ' ] for in range (len (colors)): print colors[i]Good: for inch colors: print Colors[i]Looping backwardsBad:colors = ['red','green','blue', ' Yellow ' ] for in range (len (colors) -1,-1,-1): print colors (i)Good:colors = ['red','green','blue', ' Yellow ' ] for in reversed (colors): Print colorLooping over a collec

management,The first thing that came to mind was the famous MVC pattern, and I wanted to use it to manage my UI, but because I wasn't very familiar with the MVC pattern, I tried it and it didn't work out very well.Search on the Internet a few good UI framework, are written very good, you can refer to the reference:Design and implementation of 1.unity-ui-framework by: Wang Xianyi Github2. Simple, powerful ttuiframework By:chiuan game Bull (the design idea is to refer to the author above)3. "Desi

', ];} elementsThe selector can be defined. We can define program readable name selectors and reuse their web pages in different test cases. In the above example, I defined the selector for the add Task button.Now let's ModifycreatetasktestClass and use the selector: class CreateTaskTest extends DuskTestCase{ /** * A Dusk test example. * * @return void */ public function test_I_can_create_task_successfully() { $this->browse(function ($browser) { $use

interface B to exit the entire app, you need to turn off the B-h-g-b-f-e-d-c-b-a interface, then the egg ... No one wants to shut it off like this. But if we set the B interface (main interface): Android:launchmode= "Singletask", then the boot process from a->b->c->d->e->f->b to the B interface, Instead of recreating a B interface, you will automatically finish off the C, D, E, f interfaces and then use the original B interface. And then from the b->g->h->b, it will automatically finish off the

the hell.But when you understand it, it seems to be pleasing to the eye. In the above two examples, we introduce the case of participating without parameter, return value and no return value. It's basically enough. When specific coding is used, it is better to write the implementation according to the specific logic. The lambda expression in the example is as follows in two ways:() xxx (x, y)->x,y processingAs you can see, the structure is three parts, the parenthesis before the arrow is the me

NewStudent ("Curry", the),3 NewStudent ("Lebron", at),4 NewStudent ("Kobe", -), 5 NewStudent ("Yao", One)6 };7 Bubblesorter.sort (students, student.compareage);8 foreach(varStudentinchstudents)9 {Ten Console.WriteLine (student); One}Delegates can also refer to multiple methods (multicast delegates ), but it is important to

Topic Links:Elegant constructionTime limit:4000/2000 MS (java/others)Memory limit:65536/65536 K (java/others)Problem descriptionbeing an acmer requires knowledge in many fields, because problems in this contest could use physics, bio Logy, and even musicology as background. And now on this problem, you is being a city architect!A City with N towns (numbered 1 through N) is under construction. You, the architect, is being responsible for designing how these towns is connected by one-way roads. Ea

the actual size is the same.MM (millimeters, mm): unit of physical length of the screen.PT (Points, LB): The screen physical length unit, which represents a point, is the physical size of the screen. Size is 1 inches of 1/72.DP (density independent pixels): Logical unit of length, 1dp=1px=1/160 inch on the on-screen dpi. As the density changes, the corresponding number of pixels also changes, but there is no direct change in proportion.Dip: Same as DP, more for Google samples.SP (pixels indepen

yourself. Anger always has a certain reason, but there are few good reasons. You may sometimes make a big mistake because you think you are always right. 100 thieves, also can not steal a person's face, especially when this person has no face. People often see themselves wrong, but seldom forget about themselves. The quarrel that no one admits is bound to continue endless. If your secret does not want to be known to the enemy, please keep it secret from your friends firs

PSD files are very helpful to web designers because they make their work easier and save time. If your website has an attractive and elegant page, it will help you attract more visitors to your website and encourage them to browse different pages of your website. In the previous sharing, I shared the UI, login PSD, and ISO icon set. These collections provide an attractive look, and these PSD files can help you build the next project You may also lik

Preface Start TimeI learned C #2.0 and didn't fully learn it. After work, I am either busy with projects, or have a taste of various technologies, but I have no progress in language learning. It wasn't until six months ago that I started getting started with Python (purely a hobby, and I learned it intermittently) that I could do the same for programming! OriginalCodeYou can also write it like this! Indulge in various design patterns, frameworks, and new technologies Looking back Suddenly

[start, end] is a list of size, string or array valid range subset. Along with the error message.Exception type thrown on failure: indexoutofboundsexceptionA more practical example:Import Java.util.arraylist;import java.util.list;import Org.junit.test;import com.google.common.base.Preconditions ;p Ublic class Preconditionstest {@Test public void preconditions () throws Exception {Getperson Byprecondition (8, "Peida"); try {getpersonbyprecondition ( -9, "Peida"); } c

the custom style of the file is not very good, because this time, if you switch to other projects, you still have to re-install again, do you have to change again? Not so, in fact, I recommend the practice is: the global installation of Symfony Vardumper, so not only to solve the style of a one-time problem, but also allows you to use any project Symfony Vardumper, the installation method is as follows: The first step, the global installation: Composer Global require symfony/var-dumper; Seco

(incomplete site) Delphi-dspec Groovy-gspec, http://easyb.org easyb, tspec a non-English BDD framework with Thai syntax. Java-jbehave, jdave, beanspec, instinct Javascript-jsspec Php-phpspec Python-specipy, spec plugin for nose Ruby-rspec, shoulda, test-spec bacon, cucumber Scala-specs Back to question Just now, I learned about a new technology or direction. I will go back and think about the significance of BDD for testing. Through the above understandin