记录网址

Posted 2022-01-24 sihong

"""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)