Dark Horse programmer--"Dark Horse video Notes" OC Language foundation using Property optimization Package

1.property function Usage

   1:  //@property: Setter and getter declarations that can automatically generate a member variable

   2:  int age;  The declaration of a variable can be dispensed with directly

   3:  //-(void) Setage: (int) age;

   4:  //-(int) age;

2. Attention points

If you use the property but write your own get or set method, your own writing will overwrite the corresponding method of the system.

   1:  -(void) Setage: (int) age

   2:  {

   3:  

   4:  }

   5:  

   6:  //-(int) age

   7:  //{

   8:  //    

   9:  //}

  Ten:  

One   :  //-(int) age

  :  //{

  :  //    return;

  :  //}

1.set method Memory management-related parameters

* Retain:release old value, retain new value (for OC object type)

* Assign: Direct assignment (default, for non-OC object types)

* Copy   : Release old value, copy new value

2. Whether to generate a set method

* ReadWrite: Generate both setter and Getter Declaration, implementation (default)

readonly  : Only generate getter declarations, implementations

3. Multithreading Management

* Nonatomic: High performance (usually with this)

* Atomic    : Low performance (default)

The name of the 4.setter and Getter methods

* Setter: Determines the name of the set method and must have a colon:

* Getter: Determines the name of the Get method (typically used in bool type)

Dark Horse programmer--"Dark Horse video Notes" OC Language foundation using Property optimization Package