IOS中构造方法与自定义构造方法的区别及实例演示

#import  
#import "Iphone.h" 
int main(int argc, const charchar * argv[]) 
{ 
 /* 
 Iphone * phone1 = [Iphone new]; 
 phone1->_cpu = 1.5; 
 phone1->_ram = 512; 
 */ 
 /*Iphone * phone = [Iphone alloc];//offcc 
 phone = [phone init];//[0ffcc init]; 
 */ 
 //开辟内存空间，以及初始化成员变量合并一起调用 
 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; 
} 

#import  
 
enum IphoneSize 
{ 
 IphoneSize3point5,//3.5寸屏幕 
 IphoneSize4point0,//4.0寸屏幕 
 IphoneSize4point7,//4.7寸屏幕 
 IphoneSize5point5 //5.5寸屏幕 
}; 
 
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 
 /** 用来存储iPhone屏幕尺寸 */ 
 //enum IphoneSize 与IphoneSize 等价 
 IphoneSize _size;//用来存储iPhone屏幕尺寸 
 /** 用来存储iPhone颜色 */ 
 IphoneColor _color;//用来存储iPhone颜色 
 
 /** 用来存储cpu大小 */ 
 float _cpu; 
 /** 用来存储内部容量大小 */ 
 float _ram; 
} 
 
 
/**打开闪光灯*/ 
-(void)openFlashLight; 
/**关闭闪光灯*/ 
-(void)closeFlashLight; 
/**自动*/ 
-(void)flaseLightAuto; 
/**拍照*/ 
-(void) cameraWithFlashLightStatus:(IphoneFlashLightStatus)flaseLightStatus; 
 
/**根据传入参数返回相应颜色*/ 
-(NSString * )getColorWithIphoneColor:(IphoneColor)iphoneColor; 
 
 
+(NSString *)getColorWithIphoneColor:(IphoneColor)iphoneColor; 
 
//自定义构造方法 
//1.一定是对象方法 
//2.构造方法一定是init开头 
-(Iphone *)initWithIphoneSize:(IphoneSize)iphoneSize; 
-(Iphone *)initWithIphoneSize:(IphoneSize)iphoneSize andPhoneColor:(IphoneColor)iphoneColor; 
@end