6.15 연습문제

class Thing:
pass

example = Thing()

Thing

example

class Thing2:
letters = 'abc'

Thing2.letters

class Thing3:
def __init__(self):
self.letters = 'xyz'

thing = Thing3()
thing.letters

class Element:
def __init__(self, name, symbol, number):
self.name = name
self.symbol=  symbol
self.number = number

obj1 = Element('Hydrogen', 'H', 1)

e1_dict = {
'name': 'Hydrogen',
'symbol':'H',
'number':1,
}

hydrogen = Element(e1_dict['name'], e1_dict['symbol'], e1_dict['number'])

hydrogen.name

hydrogen2 = Element(**e1_dict)
hydrogen2.name

class Element:
def __init__(self, name, symbol, number):
self.name = name
self.symbol=  symbol
self.number = number
def dump(self):
print(f'{self.name}-{self.symbol}-{self.number}')

hydrogen = Element('이름', '심볼', 10)

hydrogen.dump()

print(hydrogen)

class Element:
def __init__(self, name, symbol, number):
self.name = name
self.symbol=  symbol
self.number = number
def __str__(self):
return f'{self.name}-{self.symbol}-{self.number}'

hydrogen = Element('이름', '심볼', 1)
print(hydrogen)

class Element:
def __init__(self, name, symbol, number):
self.__name = name
self.__symbol=  symbol
self.__number = number
def __str__(self):
return f'{self.name}-{self.symbol}-{self.number}'
                                                                                                                                                                                                                            
@property
def name(self):
return self.__name
@property
def symbol(self):
return self.__symbol
@property
def number(self):
return self.__number

hydrogen = Element('이름', '심볼', 10)

hydrogen.name

class Bear():
def __init__(self):
pass
def eat(self):
return f'berries ({type(self).__name__})'
class Rabbit():
def __init__(self):
pass
def eat(self):
return f'clover ({type(self).__name__})'
class Octothorpe:
def __init__(self):
pass
def eat(self):
return f'campers ({type(self).__name__})'
def print_eat(instance):
print(instance.eat())

bear = Bear()
rabbit = Rabbit()
octothorpe = Octothorpe()

print_eat(bear)
print_eat(rabbit)
print_eat(octothorpe)

class Laser:
def __init__(self):
pass
def does(self):
return f'disintegrate ({type(self).__name__})'
class Claw:
def __init__(self):
pass
def does(self):
return f'crush ({type(self).__name__})'
class SmartPhone:
def __init__(self):
pass
def does(self):
return f'ring ({type(self).__name__})'

class Robot:
def __init__(self, laser, claw, smartphone):
self.laser = laser
self.claw = claw
self.smartphone = smartphone
def does(self):
print(self.laser.does(), self.claw.does(), self.smartphone.does())

robot = Robot(Laser(), Claw(), SmartPhone())

robot.does()