python_装饰器

```python

def all(func, *argv):

def run():

print('i am run 1')

func()

print('i am run 2')

return run

@all

def one(a = 'i am one'):

print(a)

@all

def two(a = 'i am two'):

print(a)

@all

def thr(a = 'i am thr'):

print(a)

one()

two()

thr()

```