Python 接口类或抽象类 反射

# 抽象类或者接口类，制定规范，统一方法名

 # # 抽象类或者接口类，制定规范，统一方法名
 from abc import ABCMeta,abstractmethod
 class Payrole(metaclass=ABCMeta):
     @abstractmethod
     def pay(self,money):pass

 class QQpay(Payrole):
     def pay(self,money):
         print('您已经通过QQ支付了%s元' % money)

 class Wechatpay(Payrole):
     def pay(self,money):
         print('您已经通过微信支付了%s元' % money)

 class Alipay(Payrole):
     def pay(self, money):
         print('您已经通过支付宝支付了%s元' % money)

 def pay(obj,money):
     obj.pay(money)

 qq = QQpay()
 weixin = Wechatpay()
 ali = Alipay()
 pay(qq,700)
 pay(weixin,600)
 pay(ali,400)
 pay(ali,900)

# 将方法转换为属性,修改和删除私有方法

 # 将方法转换为属性,修改和删除私有方法

 class People:
     def __init__(self, name, age, sex):
         self.name = name
         self.__age = age
         self.__sex = sex
     @property
     def age(self):
         return self.__age

     @age.setter
     def age(self,new_age):
         self.__age = new_age

     @age.deleter
     def age(self):
         return 789

 a = People('anthony',19,'男')
 # a.age = 21
 del a.age
 print(a.age)

# 反射(实例化对象、类、当前模块、其他模块)

 # 对于实例化对象
 class Foo:
     f = '类的静态变量'
     def __init__(self,name,age):
         self.name=name
         self.age=age

     def say_hi(self):
         print('hi,%s'%self.name)

 obj=Foo('egon',73)

 print(hasattr(obj,'name'))  # 判断属性是否存在
 print(getattr(obj,'name'))  # 获取属性

 setattr(obj,'oldboy','anthony')   # 修改属性
 print(getattr(obj,'oldboy'))

 print(delattr(obj,'name'))  # 删除属性
 print(getattr(obj,'name'))

实例化对象示例

 # 对于类的示例
 class Foo(object):
     staticField = "old boy"

     def __init__(self):
         self.name = 'wupeiqi'

     def func(self):
         return 'func'

     @staticmethod
     def bar():
         return 'bar'

 print(getattr(Foo,'staticField'))
 print(getattr(Foo,'bar'))

类的示例

 # 对于当前模块的示例
 import sys

 def s1():
     print( 's1')

 def s2():
     print( 's2')

 this_module = sys.modules[__name__]

 print(getattr(this_module,'s1'))
 print(hasattr(this_module,'s2'))

当前模块的示例

 #一个模块中的代码
 def test():
     print('from the test')
 """
 程序目录：
     module_test.py
     index.py

 当前文件：
     index.py
 """
 # 另一个模块中的代码
 import module_test as obj

 #obj.test()

 print(hasattr(obj,'test'))

 getattr(obj,'test')()

其他模块的示例