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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 :>, <, ==, >=, <=, ===, !=, !== Logical operators and or &&, or or ||, not or!, xor xor is true if different, The same is false. die() outputs a message and exits the current script
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 <= $len) { return $s; } $len -= 2; for ($i=0; $i<$len && $
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!