面向对象之类的组合代码注释部分

class Person:
def __init__(self,name,age,sex):
self.name = name
self.age = age
self.sex = sex
def shangshan(self):
print('%s,%s岁,%s,上山去砍柴'%(self.name,self.age,self.sex))
def kaiche(self):
print('%s,%s岁,%s,开车去东北'%(self.name,self.age,self.sex))
def zuiai(self):
print('%s,%s岁,%s,最爱大保健'%(self.name,self.age,self.sex))
ming = Person('小明','10','男')
ming.shangshan()
ming.kaiche()
ming.zuiai() #通过类造了三个行为模子,只要下面实例化一个人就可以让一个别的人来进行三个行为

#圆的周长和面积
from math import pi
class Circle:
def __init__(self,r):
self.r = r
def area(self):
return '面积是%s'%(pi*(self.r**2))
def perimeter(self):
return '周长是%s'%(2*pi*self.r)
c1 = Circle(3)
print(c1.area())
print(c1.perimeter())

#正方形的面积
class Square:
def __init__(self,length):
self.length = length
def zhouchang(self):
return '周长是%s'%(4*self.length)
def mianji(self):
return '面积是%s'%(self.length**2)
s = Square(3)
print(s.mianji())
print(s.zhouchang())

#每实例化一个对象就计数一次
# class lei:
# count = 0
# def __init__(self):
# lei.count+=1
# f1=lei()
# f2=lei()
# print(f1.count)


#通过组合来完成功能
# from math import pi
#圆形类
# 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
#圆环类
# 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
#生日类
# class Birthday:
# def __init__(self,year,month,day):
# self.year = year
# self.month = month
# self.day = day
#生日时间类
# class Course:
# def __init__(self,course_name,period,price):
# self.name = course_name
# self.period = period
# self.price = price
# 老师类
# 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)


# 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): #创建一个狗类
# 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): #一个人类
# 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): #一个武器类
# self.name = name
# self.aggr = aggr
# self.njd = njd
# self.price = price
# def hand18(self,person): #武器自带的技能,降龙十八掌
# if self.njd > 0:
# person.hp -= self.aggr * 2
# self.njd -= 1
# gelan = Person('gelan',0.5,100,'不详')
# tai = Dog('泰日天',100,500,'teddy')
# w = Weapon('打狗棒',100,3,998)
# # gelan装备打狗棒
# gelan.money += 1000
# gelan.get_weapon(w)
# print(gelan.weapon)
# print(gelan.aggr)
# gelan.attack(tai)
# print(tai.hp)
# gelan.weapon.hand18(tai)
# print(tai.hp)

# 组合 :一个对象的属性值是另外一个类的对象
# gelan.weapon 是 Weapon类的对象
原文地址:https://www.cnblogs.com/ddjl/p/8329400.html