python之装饰器2-高阶

import time

boy_age = []
girl_age = []
def fenlei(sex):
    def outer(func):
        def deco(*args,**kwargs):
            if sex == "boy":
                ret = func(*args,**kwargs)
                boy_age.append(args[1])
                print("I am a boy,our boys's ages are %s" % str(boy_age))
                return ret
            else:
                ret = func(*args,**kwargs)
                girl_age.append(args[1])
                print("I am a girl,our boys's ages are %s" % str(girl_age))
                return ret
        return deco
    return outer

@fenlei("boy")
def child1(name,age):
    print("my name is %s,I am %s years old" % (name,age))
    return "from child1"

@fenlei("girl")
def child2(name,age):
    print("my name is %s,I am %s years old" % (name,age))
    return "child2"

@fenlei("boy")
def child3(name,age):
    print("my name is %s,I am %s years old" % (name,age))
    return "child2"

print(child1("Tom",7))
child2("Anna",8)
child3("jack",9)

-----------------------------
my name is Tom,I am 7 years old
I am a boy,our boys's ages are [7]
from child1
my name is Anna,I am 8 years old
I am a girl,our boys's ages are [8]
my name is jack,I am 9 years old
I am a boy,our boys's ages are [7, 9]

这类装饰器的里面嵌套了2个函数，给需要装饰的函数添加一个分类的功能，确定这些child是男孩还是女孩。