Detailed introduction about -=

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

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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.

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##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

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