python 装饰器

 

import time 

def decorator(func):
    def wrapper():
        print time.time()
        func()
    return wrapper

def f1():
    print('xxxxxx')

f= decorator(f1)
f()

---

 

import time 

def decorator(func):
    def wrapper():
        print time.time()
        func()
    return wrapper

@decorator
def f1():
    print('xxxxxx')

f1()

 

---

 

 

import time 

def decorator(func):
    def wrapper(name):
        print time.time()
        func(name)
    return wrapper

@decorator
def f1(name):
    print('xxxxxx'+name)

f1('eeeee')

---

import time 

def decorator(func):
    def wrapper(*args):
        print time.time()
        func(*args)
    return wrapper

@decorator
def f2(n,m):
    print('xxxxxx'+n+m)

f2(1,3)

 

---

 

 

import time 

def decorator(func):
    def wrapper(*args,**kw):
        print time.time()
        func(*args,**kw)
    return wrapper

@decorator
def f3(n,m,**kw):
    print('xxxxxx'+n+m)
    print(kw)
f3(1,3,n=2,e=3)