Python全栈之路----函数----嵌套函数

def func1():
    print(‘alex‘)

    def func2():
        print(‘eric‘)

    func2() #如果没有这一句，不会print(‘eric‘)，只print(‘alex‘)

func1()

age = 19
def func1():
    age = 73
    def func2():
        print(age)
    # age = 73?
    func2()
func1()

age = 19
def func1():
    def func2():
        print(age)

    func2()
    age = 73

func1()

age = 19
def func1():
    global age
    def func2():
        print(age)
    age = 73
    func2()

func1()
print(age)