记录网址

"""访问网址,并且将网址的内容返回给文件,如果有文件且不为0。则读取即可。若没有则新建文件"""
from urllib.request import urlopen
def wrapper(func):
def inner(*args,**kwargs):
"""装饰函数之前执行的操作"""
import os
if os.path.getsize('web'):
with open('web','rb') as f:
return f.read()
ret = func(*args, **kwargs)
with open('web','wb') as f:
f.write(b'*******'+ret)
return ret
"""装饰函数之后的执行的操作"""
return inner
@wrapper
def get(url):
content=urlopen(url).read()
return content
res=get('http://www.baidu.com')
print(res)


原文地址:https://www.cnblogs.com/sihong/p/11051847.html