嵌套函数就是在一个函数里再嵌套一个或多个函数
# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"
def First():
print("in the first")
def Second():
print("in the second")
def Third():
print("in the third")
Third()
Second()
First()
运行结果
如果要修改嵌套作用域中的变量，则需要nonlocal关键字
# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"
def outer():
name = ‘John‘
def inner():
nonlocal name
name = ‘Jack‘
print(name)
inner()
print(name)
outer()
运行结果
