Shulou(Shulou.com)06/02 Report--

Editor to share with you how to use Action and Func in C#. I hope you will get something after reading this article. Let's discuss it together.

In fact, both of them are abbreviated form of principal [agent].

1. [action] specifies delegates with only input parameters and no return value

The code for Delegate:

[csharp] view plain copy

Public delegate void myDelegate (string str)

Public static void HellowChinese (string strChinese)

{

Console.WriteLine ("Good morning," + strChinese)

Console.ReadLine ()

}

MyDelegate d = new myDelegate (HellowChinese)

D ("Mr wang")

After using Action:

[csharp] view plain copy

Public static void HellowChinese (string strChinese)

{

Console.WriteLine ("Good morning," + strChinese)

Console.ReadLine ()

}

Action action = HellowChinese

Action ("Spring.")

This is equivalent to omitting the step of defining a delegate.

Second, func this and the above is the same, the difference is that this has a return value!

[csharp] view plain copy

Public static string HelloEnglish (string strEnglish)

{

Return "Hello." + strEnglish

}

Func f = HelloEnglish

Console.WriteLine (f ("Srping ji"))

Console.ReadLine ()

After reading this article, I believe you have some understanding of "how to use Action and Func in C#". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for reading!

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