标签:参数 port UNC res style run top pre imm
1.import time
def index():
print(‘welcome to index‘)
time.sleep(3)
return 123 # 被装饰对象带返回值
def home(name): # 带上参数的被装饰对象
print(‘welcome %s to home page‘ %name)
time.sleep(2)
def timmer(func):
#func=最原始的index
def wrapper(*args,**kwargs):
start=time.time()
res=func(*args,**kwargs)
stop=time.time()
print(‘run time is %s‘ %(stop - start))
return res
return wrapper
index=timmer(index)
home=timmer(home)
res=index()
home(‘egon‘)
2.装饰器语法糖
在被装饰对象正上方,并且是单独一行写上@装饰器名
放在被装饰对象上面表示接受被装饰对象作为参数,并且返回值为被装饰对象。
import time
def timmer(func):
#func=最原始的index
def wrapper(*args,**kwargs):
start=time.time()
res=func(*args,**kwargs)
stop=time.time()
print(‘run time is %s‘ %(stop - start))
return res
return wrapper
@timmer # index=timmer(index)
def index():
print(‘welcome to index‘)
time.sleep(3)
return 123
@timmer # home=timmer(home)
def home(name):
print(‘welcome %s to home page‘ %name)
time.sleep(2)
res=index()
home(‘egon‘)
def deco(func):
def wrapper(*args,**kwargs):
res=func(*args,**kwargs)
return res
return wrapper
标签:参数 port UNC res style run top pre imm
原文地址:https://www.cnblogs.com/Roc-Atlantis/p/9168970.html