class teacher:lesson = "python"def __init__(self,name,color,age):  # 只干初始化的活self.name = nameif not isinstance(name,str):raise TypeErrorself.color = colorself.age = agedef jineng(self):print('新技能')t1 = teacher('as','pink',13)   # t1可以成为teacher类的一个实例，或对象

class teacher:# 特征school = 'oldboy'lesson_default = 'python'# 技能def __init__(self,name,age,sex,lesson2):self.name = nameself.age = ageself.sex = sexself.lesson2 = lesson2def speak(self):print('讲课')def eat(self):print('吃饭')t1 = teacher('alex','23','男','运维')
t2 = teacher('egon','24','男','运维')

class People:def __init__(self,name,age,sex):self.name = nameself.age = ageself.sex = sexdef walk(self):print('%s is walking' %self.name)def foo(self):print('from father %s' %self.name)class Teacher(People):school = 'oldboy'def __init__(self,name,age,sex,level,salary):People.__init__(self,name,age,sex)self.level = levelself.salary = salarydef bar(self):People.foo(self)print('from teacher')class Student(People):passt = Teacher('egon',13,'male',10,3000)
# print(t.name,t.age)
print(t.__dict__)
t.walk()
t.bar()

class People:def __init__(self, name, age, year, mon, day):self.name = nameself.age = ageself.birth = Date(year, mon, day) 　　# 组合def walk(self):print('%s is walking' % self.name)class Date:def __init__(self, year, mon, day):self.year = yearself.mon = monself.day = daydef tell_birth(self):print('出生于<%s>年 <%s>月 <%s>日' % (self.year, self.mon, self.day))class Teacher(People):def __init__(self, name, age, year, mon, day, level, salary):People.__init__(self, name, age, year, mon, day)self.level = levelself.salary = salarydef teach(self):print('%s is teaching' % self.name)class Student(People):def __init__(self, name, age, year, mon, day, group):People.__init__(self, name, age, year, mon, day)self.group = groupdef study(self):print('%s is studying' % self.name)t = Teacher('egon', 12, 1991, 12, 12, 10, 1000)
t.teach()
t.walk()
print(t.level)
print(t.birth.tell_birth())

class File:#定义接口Interface类来模仿接口的概念，python中压根就没有interface关键字来定义一个接口。def read(self): #定接口函数readpassdef write(self): #定义接口函数writepassclass Txt(File): #文本，具体实现read和writedef du(self):print('文本数据的读取方法')def xie(self):print('文本数据的读取方法')class Sata(File): #磁盘，具体实现read和writedef read(self):print('硬盘数据的读取方法')def write(self):print('硬盘数据的读取方法')class Process(File):def read(self):print('进程数据的读取方法')def write(self):print('进程数据的读取方法')txt=Txt()
disk=Sata()
process=Process()txt.du()
# disk.read()
# process.read()

import abcclass File(metaclass=abc.ABCMeta):@abc.abstractmethoddef read(self):pass@abc.abstractmethoddef write(self):passclass Txt(File):  # 文本，具体实现read和writedef read(self):passdef write(self):passt = Txt()