C # The Extension Method encapsulates if/else, swith/case, and while

This article discusses how to encapsulate if/else, swith/case, and while using extension methods. By using these extensions, the code written will use very few braces {}. Please judge how the extension works!
Declaration: This article is an article about (change) and changing (form) states. It only proposes an idea. The provided code is just an example. It can be tested but not perfect.

First, let's look at if/else and swith/case, both of which are used to express the branch structure in the code. Here we encapsulate them into an If extension:

Public static T If <T> (this T t, Predicate <T> predicate, Action <T> action) where T: class
{
If (t = null) throw new ArgumentNullException ();
If (predicate (t) action (t );
Return t;
}

Take a look at the following call code to generate a People instance, so that he can have a good rest and then work:

Public static void Test1 ()
{
// General Code
People people1 = new People {Name = "ldp615", IsHungry = true, IsThirsty = true, IsTired = true };
If (people1.IsHungry) people1.Eat ();
If (people1.IsThirsty) people1.Drink ();
If (people1.IsTired) people1.Rest ();
Lele1.work ();
// Use the Extension Method
People people2 = new People {Name = "ldp615", IsHungry = true, IsThirsty = true, IsTired = true}
. If (p => p. IsHungry, p => p. Eat ())
. If (p => p. IsThirsty, p => p. Drink ())
. If (p => p. IsTired, p => p. Rest ());
Lele2.work ();
}

In the extension method, If can be chained by clicking ".". For more information, see my essay "c # chained programming".
General Code and use Expansion