[Selected newsletter on March 1]: PHP, Perl, Python, Ruby function comparison
Introduction: Daily [Express Selection] is a special column launched by CSDN R & D channel. Every day we will select from foreign technical media (such as Hacker News, Reddit…etc.) Valuable news briefings allow you to grasp the mainstream technical abstracts in the industry at the first time, and offer you the first technical breakfast every morning. [01] Interpreted languages: PHP, Perl, Pyth Introduction: Daily [Express Selection] is a special column launched by CSDN R & D channel. Every day we will select from foreign technical media (such as Hacker News, Reddit…etc.) Provide valuable news briefings, allowing you to grasp the mainstream technical abstracts in the industry at the first time, and present you with the first technical breakfast every morning. [01] Interpreted languages: PHP, Perl, Python, Ruby function comparison table This article lists the arithmetic and logic/string/regular expression/period and time/array (array)/dictionary/function/file control execution/directory/process of PHP, Perl, Python, Ruby development language Compared with the environment; libraries and modules/objects/mapping/web/testing/debugging and analysis/interactivity/, as well as language birth time, version number…etc. >>>【More reading】 [02] How to Get a Job Offer by Posting on Hacker News Dave Wasmer shares his experiences on how to expand the surface area of luck through community. He posted a…
(Transfer) Use Thrift0.9.1 to implement cross-language calls to Golang, Php, Python, and Java
Question introduction: What is Thrift? Where is the official website of Thrift? How to implement cross-language calls between Golang, Java, Python, and PHP through Thrift? 1. What is Thrift Thrift is a scalable cross-language service development software framework. It combines a powerful software stack with a code generation engine to build services. Thrift is fac Question guide:What is Thrift?Where is the official website of Thrift? How to implement cross-language calls between Golang, Java, Python, and PHP through Thrift? 1. What is Thrift Thrift is a scalable software framework for the development of cross-language services. It combines a powerful software stack with a code generation engine to build services. Thrift was developed by facebook. It opened source code in April 2007 and entered the apache incubator in May 2008. Thrift was created to solve the transmission and communication of large amounts of data between systems in the facebook system and the need for cross-platform features due to different language environments between systems. So thrift can support multiple programming languages, such as: C++, Java, Python, PHP, Ruby, Erlang, Perl, Haskell, C#, Cocoa, Javascript, Node.js, Smalltalk, and OCaml. (Currently version 0.9.1 has started Support golang language) to communicate between many different languages thrift…
node.js-Ask for the implementation of Md5withRsaphp, python, or nodejs, or explain the principle?
The client interface is implemented in java, and the md5withrsa used for verification can be understood by taking it apart, but it is confusing to put it together, please explain! ! ! ! Attached java implementation: package main; import java.security.KeyFactory; import java.security.KeyPair; import java.security.NoSuchAlgorithmException; import java.security.PrivateKey; import java.security.PublicKey; import java.security.Signature; import java.security.interfaces.RSAPrivateKey; import java.security.interfaces.RSAPublicKey; import java.security.spec.PKCS8EncodedKeySpec; import java.security.spec.X509EncodedKeySpec; import java.security.SecureRandom; public class main { /** * generate secret key */ public static void makeKey() { String KEY_ALGORITHM = “rsa”; java.security.KeyPairGenerator keygen; try { keygen = java.security.KeyPairGenerator .getInstance(KEY_ALGORITHM ); SecureRandom secrand = new SecureRandom(); secrand.setSeed(“tmriPayment”.getBytes()); // Initialize the random generator keygen.initialize(1024); KeyPair keys = keygen.genKeyPair(); RSAPublicKey pubkey = (RSAPublicKey) keys. getPublic(); RSAPrivateKey prikey = (RSAPrivateKey) keys. getPrivate(); String pubKeyStr= Base64Util.encodeBase64(pubkey.getEncoded());//Get the public key and do base64 encoding String priKeyStr= Base64Util.encodeBase64(prikey.getEncoded());//Get the private key and do base64 encoding System.out.println(“Public key: “+ pubKeyStr); System.out.println(“Private key: “+ priKeyStr); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * encryption * @return */ public static String encodeData() { try { byte[] data = “fdfdfsdfdfd”.getBytes(); String privateKey = “MIICXAIBAAKBgQDOF3dzQpPVIvHrx2qwszcv9Cw5XhCEyuRTy+HDPD684NSGGGnL”+ “34cLc1BCEjlT3v9H81SigvSUDB++YbMcZOrRFT+MAt22yi98BcRP60vgVixfTCCI”+ “lc39b6G6I6ac5BUfOKwdUKNUnCLvcojshmtGezcEYGocMziOIwXIdBXErQIDAQAB”+ “AoGANlycRovuQM9J7v6YFun/Cagnri4wv0ZhefUSpRQUHHBVvtVbuspIbe3J4tO5″+ “yXTN86Ws0n0mlJKqIObWfwvjoDADNeEWFXUI5YKyEnpnvvZwTo1JjrDy8QJpGe94″+ “yNebfGLKyZtIc/zLq9sFboyqNCtn2hu7IsG2g4SGe9BFcsUCQQDnrc6yXG6jmFC/”+ “7HFqXj5NtQc72vYbIjf32yG8W1D1j3ghZZwtUkIa8g3WMxFrYW9DFMzTDi3/mPSd”+ “1A9OG89DAkEA47oFZj6xf7gzDbHDdKX/S9ehjQjP2q6V7SYXnhdEwioxjJpj9qrP”+ “SKQg8A9m4nUl2FXJ2spxApotHoKHqTGFTwJBAIkcohGJBqmnQVL0mgK7l9/hXVCd”+ “O72/OKRlecfBu1449H2/ZvijkB/mVS4Jtyt31KM8siPOZoa4fTzS/ePaLYUCQDHj”+ “LY2hjFbzblPArpXeS5g8y8pOtOIuPu/t2Vyrskdq4OHxbJa8Ap7iPcj5RsuzaDAF”+ “UywYDzvHtLyrUbbR/2cCQGbbIWDLPtzHzI7QumtabHq9M5zUgvtXDksnOltcEDSX”+…
A comparison of decorator patterns in PHP, Python, and Javascript
This article mainly introduces the comparison of decorator patterns between PHP, Python, and Javascript. Decorator Pattern, also known as Decorator Pattern, is a dynamic approach to Add new to a class Decorator Pattern, also known as Decorator Pattern, is a design pattern that dynamically adds new behavior to a class in the field of object-oriented programming. In terms of functionality, the decorator pattern is more flexible than subclassing, so that you can add some functionality to an object instead of the entire class. The decoration mode is very suitable for flexibly extending the function of the object, the following is the UML diagram of the decoration mode: For example, there is a technical forum where users communicate by leaving messages. Since the forum is full of acquaintances at the beginning, there is almost no need to review the content of the messages. The page for receiving messages can be as follows: class SaveMsg(){ private $msg; public function __construct($msg){ $this->msg=$msg; } public function __store(){ // store in database } } Later, as the forum became more and more famous, some people posted links on it, so it was necessary to filter the news containing links. The forum developed further and found…
To regularly obtain rss information to the database, what script should I choose? Shell, PHP, Python?
Recently, I am working on an rss reader. I would like to ask, if I want to regularly obtain rss information from other websites, should I write a PHP script, a Shell script, or a Python script? why? Response content: Recently, I am working on an rss reader, and would like to ask, if I want to regularly obtain rss information from other websites, should I write a PHP script, a Shell script, or a Python script? why? Python is better. It is more stable than php and simpler than shell. Choose the one you are most familiar with. https://github.com/SSilence/selfoss There is an open source rss reader written in php, which supports multiple screens. You can study it
How to clean up temporary system files in batches (language: C#, C/C++, php, python, java)_php instance
The language dispute has been going on for a long time. Let’s do some IO experiments (traverse 9G files and delete them in batches), and try to use facts to compare who is better and who is worse. Operating system: win7 64-bit, file package size: 9.68G. 1. Language: C# Development environment: vs 2013 Total lines of code: 43 lines Time-consuming: 7 seconds Code: using System; using System.Collections.Generic; using System.IO; using System. Linq; using System. Text; using System. Threading. Tasks; namespace BatchDelete { class Program { static void Main(string[] args) { // input directory e:\tmp string path; Console.WriteLine(“Enter the directory to be cleaned:”); path = Console. ReadLine(); // start the timer Console.WriteLine(“Start timing: “+DateTime.Now.ToString(“HH:mm:ss”)); // First traverse the matching search and then delete it in a loop if (Directory. Exists(path)) { Console.Write(“Deleting”); foreach (string fileName in Directory. GetFileSystemEntries(path)) { if (File. Exists(fileName) && fileName. Contains(“cachegrind. out”)) { File. Delete(fileName); } } Console. WriteLine(“”); } else { Console.WriteLine(“The directory does not exist!”); } // timer ends Console.WriteLine(“End timing: ” + DateTime.Now.ToString(“HH:mm:ss”)); Console. ReadKey(); } } } Run effect diagram: 2. Language: C/C++ Development environment: vs 2013 Total lines of code: 50 lines Time-consuming: 36 seconds Code: #include #include #include #include #include #include…
![Comparison of Perl, PHP, Python, Java and Ruby [Reprinted + Organized]](https://www.1024programmer.com/wp-content/themes/iux/thumb.php?src=https://www.php1.cn/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fblog%2F321721%2F201307%2F06094850-92f13637b69c45fe893cda80e3ba20f8.jpg&refer=http%3A%2F%2Fwww.cnblogs.com%2Fliuning8023%2Fp%2F3174683.html&w=300&h=193)
Comparison of Perl, PHP, Python, Java and Ruby [Reprinted + Organized]
From the content of this article, it was written earlier, and I think some terms are not accurate, a bit colloquial, but the meaning is there. Question: What are the characteristics of each of Perl, Python, Ruby, and PHP? Why are dynamic languages mostly used as lightweight solutions? Why is LAMP popular? Why is Ruby on Rails popular? The development trend of programming language From the content of this article, it was written earlier, and I think some terms are not accurate, a bit colloquial, but the meaning is there. Question: What are the characteristics of Perl, Python, Ruby, and PHP? Why are dynamic languages mostly used as lightweight solutions? Why is LAMP popular? Why is Ruby on Rails popular? What are the development trends of programming languages? “The remaining four dynamic languages, we will classify them as background scripting languages.” The colon said and drew Chart—— Listencarefullytothequotationmarksandsay:”IrememberyoudividedtheselanguagesintoC-familystaticlanguages,Therearethreetypesofnon-Cfamilystaticlanguagesanddynamiclanguages.” The colon explains: “That is divided by grammar, focusing on theory; now it is divided by application, focusing on practice.” The full stop immediately reminds me: “This division seems to be a three-tier architecture – the front-end language corresponds to the presentation layer; the platform language and background scripting language correspond…
Java, C++, Python, Ruby, PHP, C#, JS
Imagine，What kind of scene will it be when Java, C++, Python, Ruby, PHP, C#, JS and other programming languages become animation characters& #xff1f;Let’s take a look at the Japanese writer Masato Watanabe ，what kind of “beauties” are the various programming languages?！ Java Like the dull girl in Kenji Miyazawa’s “Brave the Wind and Rain”. Since I was a child, I was regarded as an idiot by others because of my slowness and large appetite， I joined the track and field department since I entered elementary school, insisted on running & #xff0c; often achieved good results in middle and long distance running & #xff0c; gave people a lively impression . She is a very hard working girl. Her family situation is not good. Her father, Sun, was a talented artist & # xff0c; but not good at financial management & # xff0c; when she was 14 years old, she died of debt and overwork. She was adopted by Uncle Oracle， At that time, there was a dispute with Uncle Google over her custody and went to court. When people around are worried，when she is in adolescence, she will not recover in such a situation，she remains calm and continues to practice running…
listcode.cn is a platform-wide addition, deletion, modification and query code generator, which can be generated by java, python, php, and nodejs
what is listcode listcode.cn is essentially a cloud service website for code generation.Mainly provide Java, python, php, nodejs and other common languages and frameworks such as CRUD code generation services (that is, common additions, deletions and modifications), background code, front-end interface, js, etc., one-stop solution.Specific supported languages and technical frameworks: java，springmvc jpa mybatis php: laravel, thinkPhp5 python: flask, tonardo nodejs: vue, react, angular Look at a demo generated using listcode.cn What are the characteristics Support page turning: you can set the single page size. [Note 1 in Figure 1, Note 1 in Figure 3] Supports complex queries: combined queries with multiple conditions, each condition can be set with a prefix, such as greater than a certain value, like a certain value. [Note 1 in Figure 2, Note 3 in Figure 3] Perfect display and editing of foreign key tables: for tables referenced by foreign keys, a string type field is intelligently selected as a representative; a query window pops up when inputting, making the input more user-friendly. [Figure 1, 2, 3 mark 2, Figure 4, 5 mark 1] Specific type-specific display: date type, switch type, enumeration type, and will be continuously improved in the future [Figure 5] Support front-end and…
How to clean up temporary system files in batches (language: C#, C/C++, php, python, java)
Language disputes have been going on for a long time. Let’s do some IO experiments (traverse 9G files and delete them in batches), and try to use facts to compare who is better and who is worse. Operating system: win7 64-bit, file package size: 9.68G. 1. Language: C# Development environment: vs 2013 Total lines of code: 43 lines Time-consuming: 7 seconds Code: using System; using System.Collections.Generic; using System.IO; using System. Linq; using System. Text; using System. Threading. Tasks; namespace BatchDelete { class Program { static void Main(string[] args) { // input directory e:\tmp string path; Console.WriteLine(“Enter the directory to be cleaned:”); path = Console. ReadLine(); // start the timer Console.WriteLine(“Start timing: “+DateTime.Now.ToString(“HH:mm:ss”)); // First traverse the matching search and then delete it in a loop if (Directory. Exists(path)) { Console.Write(“Deleting”); foreach (string fileName in Directory. GetFileSystemEntries(path)) { if (File. Exists(fileName) && fileName. Contains(“cachegrind. out”)) { File. Delete(fileName); } } Console. WriteLine(“”); } else { Console.WriteLine(“The directory does not exist!”); } // timer ends Console.WriteLine(“End timing: ” + DateTime.Now.ToString(“HH:mm:ss”)); Console. ReadKey(); } } } Run effect diagram: 2. Language: C/C++ Development environment: vs 2013 Total lines of code: 50 lines Time-consuming: 36 seconds Code: #include #include #include #include #include #include #include…
