ios开发小技巧-用宏化简代码

 1 /**
 2  *  声明方法
 3  */
 4 - (instancetype) initWithDictionary:(NSDictionary *)dict;
 5 + (instancetype) carWithDictionary:(NSDictionary *)dict;
 6 
 7 /**
 8  *  实现方法
 9  */
10 - (instancetype)initWithDictionary:(NSDictionary *)dict
11 {
12     if (self = [super init]) {
13         [self setValuesForKeysWithDictionary:dict];
14     }
15     return  self;
16 }
17 
18 + (instancetype)carWithDictionary:(NSDictionary *)dict
19 {
20     return [[ZYCar alloc]initWithDictionary:dict];
21 }

 1 #define InitH(name)  2 - (instancetype)initWithDict:(NSDictionary *)dict;  3 + (instancetype)name##WithDict:(NSDictionary *)dict;
 4 
 5 #define InitM(name) 6 - (instancetype)initWithDict:(NSDictionary *)dict  7 {  8     if (self = [super init]) {  9         [self setValuesForKeysWithDictionary:dict]; 10     } 11     return self; 12 } 13 + (instancetype)name##WithDict:(NSDictionary *)dict 14 { 15     return [[self alloc] initWithDict:dict]; 16 }
17 
18 #endif