elegant smoking

or a transgender between a strong type and an untyped one. C # It is really the father of the OOP family. F # elegant implementation method polymorphism Dynamic Language indulgence, OOP language incompetence, among which C # language is abnormal. We just want to find a language, and the implementation of method polymorphism is not suffering, but also ensures security.Functions are also of the type.The data type is determined by the pa

Link: BNU 34895 elegant string Given N and K, there is a sequence with a length of n. The elements in the sequence are from 0 ~ K composition, ask how many strings meet does not contain 0 ~ K. Solution: the matrix's fast power. According to DP [I] [J], I indicates that J is the same, write the recursive formula, and find the matrix based on the recursive formula. #include

Elegant downgrade: all functions of the site are built at the beginning, and then modified and repaired Based on browser tests. Progressive enhancement: At first, only the minimum features of the site are built, and then the browser is constantly added. For front-end development, I prefer progressive enhanced development solutions. First, the presentation of mainstream browsers supported in the simplest way, then, you can implement various special

;importorg.apache.velocity.app.velocityengine;import com.echo.api.velocity.inter.idataadapter;/*** Common Data * packagecom.echo.api;importjava.util.arraylist;importjava.util.date;import java.util.list;importorg.apache.velocity.velocitycontext;import com.echo.api.velocity.impl.generaldataadapter;importcom.echo.api.velocity.inter.idataadapter;/*** uses velocity to design a complex and varied message interface that implements different output *Output Json,xml, and different screens[{"Count:": 1,

{Code...} is there any elegant way to change the id key to comment_id in addition to the method of inserting and deleting the code first? [0] => Array ([id] => 115 [create_time] => 2 hours ago [content] => xxxxxxxxxxxx) In addition to the insert and delete methods,Comparison?EleganceIn this exampleIdKeyComment_id Reply content: [0] => Array ([id] => 115 [create_time] => 2 hours ago [content] => xxxxxxxxxxxx) In addition to the insert and delete m

process specified by the pid. In some cases (for example, if the process is already hang and cannot respond to normal signals), kill-9 can be used to end the process. If a Process terminated by kill is a parent Process that has created a child Process, the child Process will become an Orphan Process. in this case, the exit status of the sub-process cannot be captured by the application process (because the application as the parent process does not exist), but it should not adversely affect the

Original site: http://blog.chedushi.com/archives/7258Recently in the use of xlrd write a question bank automatic export program, but encountered a more ugly problem.The program requires that the data in the XLS file be exported to text, but XLRD will automatically convert all data in the XLS cell to a Python float when it reads data. At this point, we get 12.0 (assuming Cell.value = 12.0) through STR (cell.value).I need a string 12 but give me 12.0, too ugly ....A more ugly solution is as follow

One, one room do not sweep why sweep the world1. "5 tidy": neat, clean bed, tidy bedroom, desk (room) neat, PC folder tidy;2. "Daily Wash". Brush your teeth sooner or later and bathe every day. Underwear socks Daily Change, the same day cleaning;3. "Check before going Out": proper dress, neat hairstyle, clean and tidy and orderly belongings;Second, words must be done. Deed1. The same day, completion of the day;2. Learn the schedule management. Complete the matter within the stipulated time;3. Ti

difficult to maintain. In some languages like Ruby developers usually just avoid them. In Go, constants have many subtleties. When used well, it makes the code very elegant and easy to maintain. Self-growth In Golang, a handy idiom is the use of identifiers iota , which simplifies the definition of constants for growth numbers, giving the same values to the exact classification. const ( CategoryBooks = iota // 0 CategoryHealth // 1 Cat

Elegant verification code Import the font by yourself. you can modify the font as needed.We recommend that you use bold fonts. Class Imagecode { Private $ width; Private $ height; Private $ counts; Private $ distrubcode; Private $ fonturl; Private $ fonturlbg; Private $ session; /** * Enter description here... * * @ Param unknown_type $ width * @ Param unknown_type $

This is a creation in Article, where the information may have evolved or changed. The guy who wrote go should have heard the words of Rob Pike. Do not communicate by sharing memory; Instead, share memory bycommunicating. I believe that many friends and I, in the actual application of the total sense of no benefit, in order to use the channel. But in my experience, this is the code when the scene is not complicated, the channel is not familiar with the result, so I hope this article can

This article describes how to use AngularJS to compile more elegant JavaScript code guides, including programming suggestions on advanced techniques such as controller and encapsulation! For more information, see the sample code below. Download: modulePattern.zip-all four HTML files and panacea. js-1.6 KB. Introduction AngularJS Library contains many things, but I only want to focus on small ones in this article. I believe they can provide a better i

Public classpeople { Public stringName; Public intAge ; PublicPeople (stringNameintAge ) { This. Name =name; This. Age =Age ; } PublicPeople Clone () {return NewPeople ( This. Name, This. Age); }} ListNewList(); Plist.add (NewPeople ("A",Ten)); Plist.add (NewPeople ("B", -)); Plist.add (NewPeople ("C", -)); ListNewList(Plist.count); Copy Plist.foreach (Delegate(People Item) {Plist2.add (item. Clone ()); });Elegant de

The following two methods are used to convert similar #54620, such fragments into normal textThe first method is to use the regular to find the fragments that need to be replaced, then loop, the second method uses Preg_replace_callback, the second method has less code and looks more elegant.Method One$test _str= "Zeng #54620, Li #44397; #50612;";Echo unescape ($test _str);function Unescape ($STR) {Preg_match_all ("/(?:%u.{4}) | #x. {4};|#\d+;|.+/u", $str, $r);$ar = $r [0];foreach ($ar as $k =

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

a young, beautiful, and hungry American Girl posted a question on the financial edition of a large online forum in the United States: How can I marry rich people? "all I want to talk about is in my heart. I am 25 years old, very beautiful, elegant talk, taste, want to marry a person with an annual salary of 0.5 million US dollars. You may say that I am greedy, but in New York, the annual salary of 1 million is regarded as a middle class, and my requi

item when Flex is applied? The added width is 90px, so the width of the last leftmost item is 190px.We just mentioned that grow and shrink are actually twins, actually they are really like, shrink said when the total width of the item is larger than the container, in order to get the item to fill the container, each item reduces the width. But the formulas are not the same. Why? Because it doesn't matter when you add, but when you subtract, if you only calculate the shrink value given, it's lik

Originally completed on: 2015-04-27 19:28:22Provides a way to gracefully handle Android database upgrade issues directly on the code:1 packageCom.example.databaseissuetest; 2 3 ImportAndroid.content.Context; 4 ImportAndroid.database.sqlite.SQLiteDatabase; 5 ImportAndroid.database.sqlite.SQLiteOpenHelper; 6 ImportAndroid.text.TextUtils; 7 ImportAndroid.util.Log; 8 9 public class Databasehelper extendsSqliteopenhelper {Ten public static final String db_name = "Jjtest"; one-to-one static final stri

.encoding=utf-8Log4j.appender.a3.append=trueLog4j.appender.a3.maxfilesize=2mbLog4j.appender.a3.maxbackupindex=5Log4j.appender.a3.layout=org.apache.log4j.patternlayoutlog4j.appender.a3.layout.conversionpattern=%-5p%d [%t]%c{3}.%m-%m%n? 1 The configuration file hasLog4j.logger.test=debugLog4j.additivity.test.xml=falseLog4j.logger.test.xml=debug,a3In this example, the inheritance relationship is canceled by Log4j.additivity.test.xml=false, so that the XML log is onl

[Tips] to make null value processing of C # more elegant, Reference Http://www.codeproject.com/Articles/739772/Dynamically-Check-Nested-Values-for-IsNull-Values? Msg = 4895299 # xx4895299xx Http://devtalk.net/csharp/chained-null-checks-and-the-maybe-monad/ Introduction Processing of null values in C # has always been an unpleasant task. Suppose there are the following classes: public class Union { public string Name { get; set; } } public class Dep