C # Fundamentals (iii), properties

1. Properties: Improve security

(1) Composition: Access modifier return Type property name

｛

get{statement Collection;} Read properties, which can only be retrieved when they exist alone

set{statement Collection;} Write attributes, which can only be assigned when they exist alone

｝

(2) static property: Access modifier static return type property name

｛

get{statement Collection;} Read properties, which can only be retrieved when they exist alone

set{statement Collection;} Write attributes, which can only be assigned when they exist alone

｝

Static properties can only access static members of a class and apply to an entire class rather than to another instance

(3) Adding a checksum code during a retrieval or assignment can delay instantiation

public static Double

{

Get

{

return age;

}

Set

{

Validating data

if (value< 0)

{

Console.WriteLine ("Age cannot be negative");

Return

}

Else

{

Age= value;

}

}

}

Public double Balance

{

Get

{

if (_balance < 0)

Console.WriteLine ("No Available Balance");

return _balance;

}

}

　　　　

C # Fundamentals (iii), properties