def get_math_func(type, nn) :
    # 定義一個(gè)計(jì)算平方的局部函數(shù)
    def square(n) :  # ①
        return n * n
    # 定義一個(gè)計(jì)算立方的局部函數(shù)
    def cube(n) :  # ②
        return n * n * n
    # 定義一個(gè)計(jì)算階乘的局部函數(shù)
    def factorial(n) :   # ③
        result = 1
        for index in range(2, n + 1) :
            result *= index
        return result
    # 調(diào)用局部函數(shù)
    if type == "square" :
        return square(nn)
    elif type == "cube":
        return cube(nn)
    else:
        return factorial(nn)
print(get_math_func("square", 3)) # 輸出9
print(get_math_func("cube", 3)) # 輸出27
print(get_math_func("", 3)) # 輸出6

def foo ():
    # 局部變量name
    name = 'Charlie'
    def bar ():
        # 訪問bar函數(shù)所在的foo函數(shù)的name局部變量
        print(name) # Charlie
        name = '孫悟空'
    bar()
foo()

def foo ():
    # 局部變量name
    name = 'Charlie'
    def bar ():
     nonlocal name
        # 訪問bar函數(shù)所在的foo函數(shù)的name局部變量
        print(name) # Charlie
        name = '孫悟空'
    bar()
foo()