python 装饰器
2021-07-08 05:06
阅读：554
1、作用域 2、高阶函数 3、闭包import time
def logger(flag=False):
def show_time(f):
def inner(*args,**kwargs):
start = time.time()
f(*args,**kwargs)
end = time.time()
print(end-start)
if flag:
print(‘record log...‘)
return inner
return show_time
@logger(True) # foo = show_time(foo)
def foo(a, b):
print(‘foo...%d‘ % (a+b))
time.sleep(2)
foo(2, 5)
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