函数的作用域

函数的作用域只跟函数声明时定义的作用域有关，跟函数的调用位置无任何关系

def test1():
    print('in the test1')
def test():
    print('in the test')
    return test1
print(test)
res=test()
print(res()) #test1()

输出

<function test at 0x0000000002995620>
in the test
in the test1
None

name = 'alex'
def foo():
    name='linhaifeng'
    def bar():
        name='wupeiqi'
        print(name)
    return bar
a=foo()
print(a)
a() #bar()

输出

<function foo.<locals>.bar at 0x0000000002995620>
wupeiqi