类2

ss Student(object):
def get_score(self):
return self._score
def set_score(self, value):
if not isinstance(value, int):
raise ValueError('score must be an integer')
if value < 0 or value > 100:
raise ValueError('score must between 0 ~ 100')
self._score = value
s = Student()
s.set_score(50)
print(s.get_score())

class Student(object):
def __init__(self):
self._score = 0
@property
def score(self):
return self._score
@score.setter
def score(self, value):
if not isinstance(value, int):
raise ValueError('score must be an integer')
if value < 0 or value > 100:
raise ValueError('score must between 0-100')
self._score = value
s = Student()
s.score = 60
print(s.score)

class Screen(object):
pass
class Screen(object):
@property
def width(self):
return self._width
@property
def height(self):
return self._height
@width.setter
def width(self, value):
if not isinstance(value, int):
raise ValueError('score must be an integer')
if value < 0 or value > 100:
raise ValueError('score must between 0-100')
self._width = value
@height.setter
def height(self, value):
if not isinstance(value, int):
raise  ValueError('score must be an integer')
if value < 0 or value > 100:
raise ValueError('score must between 0-100')
self._height = value
@property
def resolution(self):
self._resolution = 1000
return self._resolution
sc = Screen()
print(sc.resolution)

sc.height = 100
sc.width = 50
print(sc.height)
print(sc.width)