Construction method, Custom construction method

  main.m#import <Foundation/Foundation.h> #import "Iphone.h" int main (int argc, const char * argv[]) {    / *    iphone * phone1 = [iphone new];    PHONE1->_CPU = 1.5;    Phone1->_ram = +;    */      /*iphone * phone = [Iphone alloc];//offcc        phone = [phone INIT];//[0FFCC init];    *    ///Open up memory space, and initialize member variable merge call    iphone * phone = [[iphone ALLOC]INIT];//[0FFCC init];    Phone->_ram = +;        NSLog (@ "%@", phone);        iphone * phone2 = [[iphone alloc] initwithiphonesize:iphonesize4point0];        NSLog (@ "%@", phone2);        iphone * phone3 = [[iphone alloc] initwithiphonesize:iphonesize4point0 Andphonecolor:iphonecolorblack];                    return 0;}

Iphone.h#import <foundation/foundation.h>enum iphonesize{iphonesize3point5,//3.5 inch screen IphoneSize4point0,/    /4.0 inch screen iphonesize4point7,//4.7 inch screen iphonesize5point5//5.5 inch screen};typedef enum iphonesize iphonesize;enum IphoneColor{ Iphonecolorwhite, iphonecolorblack};typedef enum Iphonecolor iphonecolor;enum iphoneflashlightstatus{IphoneFlash Lightstatusopen, Iphoneflashlightstatusclose, iphoneflashlightstatusauto};typedef enum IphoneFlashLightStatus Iphon    eflashlightstatus; @interface iphone:nsobject{@public/** to store Iphone screen size *///enum iphonesize and iphonesize equivalent    Iphonesize _size;//used to store iphone screen size/** used to store iphone color */Iphonecolor _color;//used to store iphone color/** used to store CPU size */    float _cpu; /** used to store internal capacity */float _ram;} /** Open Flash */-(void) openflashlight;/** off flash */-(void) closeflashlight;/** auto */-(void) flaselightauto;/** photo */-(void) Camerawithflashlightstatus: (iphoneflashlightstatus) flaselightstatus;/** returns the corresponding color */-(NSString *) According to the incoming parameters GetColorWithIPhonecolor: (Iphonecolor) iphonecolor;+ (NSString *) Getcolorwithiphonecolor: (iphonecolor) iphonecolor;//Custom construction method//1. Must be the object method//2. Construction method must be init-(iphone *) Initwithiphonesize: (iphonesize) iphonesize;-(iphone *) Initwithiphonesize: ( iphonesize) iphonesize Andphonecolor: (iphonecolor) Iphonecolor; @end

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Construction method, Custom construction method