CLR in C # notes--Boxing and unpacking

Value types are lighter than reference types because they are not allocated as objects in the managed heap, are not garbage collected, and are not referenced by pointers, but sometimes need to get instance references to value types

struct point{    publicint  x, y;           }  Public class program{    publicvoid  main ()    {         ArrayList a=new ArrayList ();          New Point ();          1 ;         A.add (P);    }}            

To view the Add method prototype in ArrayList:

Public virtual Int32 Add (Object value);

Add gets an object parameter, which is a reference type parameter, but a value type reference is passed in the code, in order for the code to fetch work, the point value type must be converted to an object on the managed heap, and a reference to the object must be obtained

The value type

CLR in C # notes--Boxing and unpacking