構造方法，自訂構造方法，構造方法自訂

構造方法，自訂構造方法，構造方法自訂

////  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 = 512;    */      /*Iphone * phone = [Iphone alloc];//offcc        phone = [phone init];//[0ffcc init];    */    //開闢記憶體空間，以及初始化成員變數合并一起調用    Iphone * phone = [[Iphone alloc]init];//[0ffcc init];    phone->_ram = 512;        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寸螢幕    IphoneSize4point0,//4.0寸螢幕    IphoneSize4point7,//4.7寸螢幕    IphoneSize5point5 //5.5寸螢幕};typedef enum IphoneSize IphoneSize;enum IphoneColor{    IphoneColorWhite,    IphoneColorBlack};typedef enum IphoneColor IphoneColor;enum IphoneFlashLightStatus{    IphoneFlashLightStatusOpen,    IphoneFlashLightStatusClose,    IphoneFlashLightStatusAuto};typedef enum IphoneFlashLightStatus IphoneFlashLightStatus;@interface Iphone : NSObject{    @public    /** 用來儲存iPhone螢幕尺寸 */    //enum IphoneSize 與IphoneSize 等價    IphoneSize _size;//用來儲存iPhone螢幕尺寸    /** 用來儲存iPhone顏色 */    IphoneColor _color;//用來儲存iPhone顏色        /** 用來儲存cpu大小 */    float _cpu;    /** 用來儲存內部容量大小 */    float _ram;}/**開啟閃光燈*/-(void)openFlashLight;/**關閉閃光燈*/-(void)closeFlashLight;/**自動*/-(void)flaseLightAuto;/**拍照*/-(void) cameraWithFlashLightStatus:(IphoneFlashLightStatus)flaseLightStatus;/**根據傳入參數返回相應顏色*/-(NSString * )getColorWithIphoneColor:(IphoneColor)iphoneColor;+(NSString *)getColorWithIphoneColor:(IphoneColor)iphoneColor;//自訂構造方法//1.一定是對象方法//2.構造方法一定是init開頭-(Iphone *)initWithIphoneSize:(IphoneSize)iphoneSize;-(Iphone *)initWithIphoneSize:(IphoneSize)iphoneSize andPhoneColor:(IphoneColor)iphoneColor;@end

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