name = 'alex'

def foo():

    name='linhaifeng'

    def bar():

        #name='wupeiqi'

        print(name)

    return bar

a=foo()

print(a)

a() #bar()

结果：

<function foo.<locals>.bar at 0x7f7956a22158>

linhaifeng

name='alex'

def foo():

    name='lhf'

    def bar():

        name='wupeiqi'

        print(name)

        def tt():

            print(name)

        return tt

    return bar

bar=foo()

tt=bar()

print(tt)

tt()

结果：

wupeiqi

<function foo.<locals>.bar.<locals>.tt at 0x7f1ee6c911e0>

wupeiqi