This article mainly introduces the in-depth study of += and -= in C#. This article in-depth studies what += and -= do during execution to deepen the understanding and use of C# delegates. Friends in need Can you refer to what I wrote earlier about why you suddenly want to talk about delegation? The reason started from the idea of a colleague. I was thinking about this problem on my way to get off work yesterday. If I register multiple methods for delegation, will they all be executed? In order to explore the nature, I made a demo to study it. += Everyone knows that delegates inherit from System.MulticastDelegate, and System.MulticastDelegate inherits from System.Delegate. You can register multiple methods for delegates through +=. So have they all been implemented? What is the result of execution? Are the results the same if there is a return value and if there is no return value? Then try to talk about what += has done? The test code is as follows: namespace Wolfy.DelegateDemo { public del
1. In-depth explanation of += and -= of delegation in C
Introduction: This article mainly introduces the in-depth study of += and -= in delegation in C#. This article in-depth studies what += and -= do during execution to deepen the understanding of C# delegation. Friends who need it can refer to
##2. Android programmers learn PHP development (9)-Assignment comparison logical operation-PhpStorm
Introduction: assignment operator symbols: =, +=, -=, *=, /=, %=, .= comparison operator symbols :>, =,
3. C# Learning Diary 24----Event
Introduction: Events provide classes and class instances with the ability to send notifications to the outside world, realizing communication between objects. , if an event member is defined, it means that the type has 1. The ability to register methods in the event (+= operator implementation). 2. Ability to unregister methods in events (-= operator implementation). 3. The registered method will be notified when the event is triggered (the event maintains a list of registered methods internally). Delegation is the carrier of events. To define an event, you must have a delegate. For more information about delegation, please click Delegate to learn more.
4. Android directory structure php operators and control structures
Introduction: Android directory structure: Android directory structure PHP operators and control structures: Operators Operators are symbols used to perform certain operations on arrays and variables. 1. Arithmetic operator operator name example + add $a + $b - subtract $a - $b* multiply $a*$b/divide $a/$b% remainder $a%$b2, compound assignment operator operation The usage of the symbol is equivalent to +=$a+=$b$a=$a+$b-=$a-=$b$a=$a-$b*=$a*=$b$a=$a* $b/=$a/=$b$a=$a/$b%=$a%=$b$a=$a%$b.=$a.=$b$a=$a.$b Preincrement, decrement and post
5. Photoshop learning video PHP learning operator related concepts
Introduction: photoshop learning video: photoshop learning video php learning operator related concepts: Copy the code code as follows: = !== * Comparison operator---Conditional operator---Relationship
6. China Partnership Function to solve the problem of Chinese and English string length in English lines
Introduction: Chinese Partner English Lines: Chinese Partner English Lines to solve the problem of Chinese and English string lengths Function: Copy the code The code is as follows: function strSplit($s, $len) { $end = '...'; $result = ''; $strLen = strlen($s); if ($strLen
7. Function to solve the problem of Chinese and English string length_PHP tutorial
Introduction: Solving Chinese and English characters String length problem function. Copy the code as follows: functionstrSplit($s,$len){ $end='...'; $result=''; $strLen=strlen($s); if($strLen=$len){ return$s; } $len-=2; for($i=0;$i$len$i$strLen;$i++){ $c=$s[$i];
8. PHP source program for sending mobile text messages using ICQ gateway_PHP tutorial
##Introduction: PHP source program for sending mobile phone text messages using ICQ gateway? //
# // // For questions and comments // Roland (alias -=: Vlieg :=-) // icq #78354631 // mail: vlieg@atoomnet.net // // N
9.
php implementation code for sending emails with attachments_PHP tutorial
10. php Implementation code for sending emails with attachments, php attachment_PHP Tutorial
Introduction: PHP implementation code for sending emails with attachments, PHP attachments. PHP implementation code for sending emails with attachments, PHP attachments? class CMailFile {var $subject; var $addr_to; var $text_body; var $text_encoded; var $mime_headers; var $mime_boundary = "--==[Related Q&A recommendations]: A doubt about javascript type conversion############The ternary operator colon in JS: Can I write multiple statements in the end? ############javascript - How to call each other at the same level in vuex############javascript - There must be two in the front-end web page There are two message boards. When sending, one is sent and the other cannot be sent. Can someone please give me an answer? ############linux - dnet header not found error occurs when installing snort daq , it still doesn’t work after installing dnet######The above is the detailed content of Detailed introduction about -=. For more information, please follow other related articles on the PHP Chinese website!

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.

Fibers was introduced in PHP8.1, improving concurrent processing capabilities. 1) Fibers is a lightweight concurrency model similar to coroutines. 2) They allow developers to manually control the execution flow of tasks and are suitable for handling I/O-intensive tasks. 3) Using Fibers can write more efficient and responsive code.

The PHP community provides rich resources and support to help developers grow. 1) Resources include official documentation, tutorials, blogs and open source projects such as Laravel and Symfony. 2) Support can be obtained through StackOverflow, Reddit and Slack channels. 3) Development trends can be learned by following RFC. 4) Integration into the community can be achieved through active participation, contribution to code and learning sharing.

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP is not dying, but constantly adapting and evolving. 1) PHP has undergone multiple version iterations since 1994 to adapt to new technology trends. 2) It is currently widely used in e-commerce, content management systems and other fields. 3) PHP8 introduces JIT compiler and other functions to improve performance and modernization. 4) Use OPcache and follow PSR-12 standards to optimize performance and code quality.

The future of PHP will be achieved by adapting to new technology trends and introducing innovative features: 1) Adapting to cloud computing, containerization and microservice architectures, supporting Docker and Kubernetes; 2) introducing JIT compilers and enumeration types to improve performance and data processing efficiency; 3) Continuously optimize performance and promote best practices.


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