Five Ways to use C#this

Five ways to use this:

1. Use the Masked member variable:

Class AA

{

int A;

public void Set1 (int a)

{

THIS.A = A;//right

}

public void Set2 (int a)

{

A = a;//will have a warning: "Assign a value to the same variable; Do you want to assign a value to another variable?" ；

}

}

2. Pass this object to other functions

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespaceconsoleapplication1{classBB {Static  Public void Set(AA T,inta) {T.set1 (a); }    }    classAA {intA;  Public voidSet1 (inta) { This. A =A; }         Public voidSet2 (inta) {BB.Set( This, a); }         Public int Get()        {            returnA; }    }        classProgram {Static voidMain (string[] args) {AA T=NewAA (); T.set2 (123); Console.WriteLine (T.Get()); }    }}

3.With Indexers (indexer)//This temporarily does not understand

4. Calling other constructors

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespaceconsoleapplication2{classAA {intA, B;  PublicAA (inta) { This. A =A; b= -1;        Print (); }         PublicAA (intAintb): This(a) { This. B =b;        Print (); }        voidprint () {Console.WriteLine ("{0} {1}", A, b); }    }    classProgram {Static voidMain (string[] args) {AA T=NewAA (1); T=NewAA (1,1); }    }}

Output:

1-1

1-1

1 1

5. Is the code more explicit

such as the

         Public AA (int  a)        {            this. A = A;              =-1;            Print ();        }    

Switch

         Public AA (int  a)        {            this. A = A;              this. B =-1;            Print ();        }

Five Ways to use C#this