def decorator_get_function_duration(enable):
"""
:param enable: 是否需要统计函数执行耗时
:return:
"""
print("this is decorator_get_function_duration")
def inner(func):
print('this is inner in decorator_get_function_duration')
@wraps(func)
def wrapper(*args, **kwargs):
print('this is a wrapper in decorator_get_function_duration.inner')
if enable:
start = time.time()
print(f" 函数执行前： {start}")
result = func(*args, **kwargs)
print('[%s]`s enable was %s it`s duration : %.3f s ' % (func.__name__, enable, time.time() - start))
else:
result = func(*args, **kwargs)
return result
return wrapper
return inner
def decorator_1(func):
print('this is decorator_1')
@wraps(func)
def wrapper(*args, **kwargs):
print('this is a wrapper in decorator_1')
return func(*args, **kwargs)
return wrapper
def decorator_2(func):
print('this is decorator_2')
@wraps(func)
def wrapper(*args, **kwargs):
print('this is a wrapper in decorator_2')
return func(*args, **kwargs)
return wrapper
@decorator_1 # 外汇跟单gendan5.com 此处相当 :decorator_1(decorator_2(decorator_get_function_duration(enable=True)(fun)))
@decorator_2 # = decorator_2(decorator_get_function_duration(enable=True)(fun))
@decorator_get_function_duration(enable=True) # = decorator_get_function_duration(enable=True)(fun)
def fun():
time.sleep(2)
print("fun 执行完了～ ")
fun()
# ======== enable=False ============
"""
this is decorator_get_function_duration
this is inner in decorator_get_function_duration
this is decorator_2
this is decorator_1
this is a wrapper in decorator_1
this is a wrapper in decorator_2
this is a wrapper in decorator_get_function_duration.inner
fun 执行完了～
"""
# ======== enable=True ============
"""
this is decorator_get_function_duration
this is inner in decorator_get_function_duration
this is decorator_2
this is decorator_1
this is a wrapper in decorator_1
this is a wrapper in decorator_2
this is a wrapper in decorator_get_function_duration.inner
函数执行前： 1634635708.648994
fun 执行完了～
[fun]`s enable was True it`s duration : 2.002 s
"""