获得对象的方法以及属性

所谓的反射机制：指的是程序在运行时能够获取自身的信息。

/* 获取对象的所有属性 */

- (NSDictionary *)properties_aps{    NSMutableDictionary *props = [NSMutableDictionarydictionary];      unsigned int outCount, i;      objc_property_t *properties = class_copyPropertyList([self class], &outCount);      for (i = 0; i< outCount; i++)    {       objc_property_t property = properties[i];       const char* char_f =property_getName(property);       NSString *propertyName = [NSStringstringWithUTF8String:char_f];       id propertyValue = [selfvalueForKey:(NSString *)propertyName];          if (propertyValue) [props setObject:propertyValue forKey:propertyName];       }      free(properties);      return props;   }   

/* 获取对象的所有方法 */

-(void)printMothList{   unsigned int mothCout_f =0;   Method* mothList_f = class_copyMethodList([self class],&mothCout_f);   for(int i=0;i<mothCout_f;i++)    {       Method temp_f = mothList_f[i];       IMP imp_f = method_getImplementation(temp_f);       SEL name_f = method_getName(temp_f);       const char* name_s =sel_getName(method_getName(temp_f));       int arguments = method_getNumberOfArguments(temp_f);       const char* encoding =method_getTypeEncoding(temp_f);       NSLog(@"方法名：%@,参数个数：%d,编码方式：%@",[NSStringstringWithUTF8String:name_s],                                            arguments,                            [NSStringstringWithUTF8String:encoding]);    }   free(mothList_f);}