# 面向对象的三大特性 : 继承 多态 封装
# 组合
# 人狗大战
class Dog:
def __init__(self,name,aggr,hp,kind):
self.name = name
self.aggr = aggr
self.hp = hp
self.kind = kind
def bite(self,person):
person.hp -= self.aggr
class Person:
def __init__(self,name,aggr,hp,sex):
self.name = name
self.aggr = aggr
self.hp = hp
self.sex = sex
self.money = 0
def attack(self,dog):
dog.hp -= self.aggr
def get_weapon(self,weapon):
if self.money >= weapon.price:
self.money -= weapon.price
self.weapon = weapon
self.aggr += weapon.aggr
else:
print("余额不足,请先充值")
class Weapon:
def __init__(self,name,aggr,njd,price):
self.name = name
self.aggr = aggr
self.njd = njd
self.price = price
def hand18(self,person):
if self.njd > 0:
person.hp -= self.aggr * 2
self.njd -= 1
alex = Person('alex',0.5,100,'不详')
jin = Dog('金老板',100,500,'teddy')
w = Weapon('打狗棒',100,3,998)
# alex装备打狗棒
alex.money += 1000
alex.get_weapon(w)
print(alex.weapon)
print(alex.aggr)
alex.attack(jin)
print(jin.hp)
alex.weapon.hand18(jin)
print(jin.hp)
# 圆形类
# 圆环类
from math import pi
class Circle:
def __init__(self,r):
self.r = r
def area(self):
return self.r**2 * pi
def perimeter(self):
return 2*pi*self.r
class Ring:
def __init__(self,outside_r,inside_r):
self.outside_c = Circle(outside_r)
self.inside_c = Circle(inside_r)
def area(self):
return self.outside_c.area() - self.inside_c.area()
def perimeter(self):
return self.outside_c.perimeter()+self.inside_c.perimeter()
# ring = Ring(20,10)
# print(ring.area())
# print(ring.perimeter())
# 创建一个老师类
# 老师有生日
# 生日也可以是一个类
# 组合
class Birthday:
def __init__(self,year,month,day):
self.year = year
self.month = month
self.day = day
class Course:
def __init__(self,course_name,period,price):
self.name = course_name
self.period = period
self.price = price
class Teacher:
def __init__(self,name,age,sex,birthday):
self.name = name
self.age = age
self.sex = sex
self.birthday =birthday
self.course = Course('python','6 month',2000)
b = Birthday(2018,1,16)
egg = Teacher('egon',0,'女',b)
print(egg.name)
print(egg.birthday.year)
print(egg.birthday.month)
print(egg.course.price)
组合练习
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转载自blog.csdn.net/qq_37493425/article/details/87915860
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