Declaration and implementation of the Oc-04-class

main.m//10-the Declaration and implementation of the "Mastering" class//.h for the declaration of the class,. M is the implementation of the class, + represents the class method static method,-represents the object method. The methods in the. h file are public and cannot be changed. Access domain in Variable 3: public,protected (subclass), private (this class). #import <foundation/foundation.h>//declare the class @interface Person:nsobject (parent class name) {    //Declare the attribute variable before you must underline it.    NSString * _name;    int _age;    float _weight;} Declaration Method-(void) eat;-(void) run;+ (void) breath; @end//Make an implementation class for humans the class  name of the class to implement which class is placed behind the @implementation. @implementation person//Implementation Method-(void) eat{    NSLog (@ "eat");} -(void) run{    NSLog (@ "Run and Run");} + (void) breath{    NSLog (@ "XXIXIXIXIX");} @endint Main (int argc, const char * argv[]) {    @autoreleasepool {        //Insert code        here ... NSLog (@ "Hello, world!");    }    return 0;}

Declaration and implementation of the Oc-04-class