解析url
from urllib.parse import urlparse
url_change = urlparse('https://i.cnblogs.com/EditPosts.aspx?opt=1')
#ParseResult(scheme='https', netloc='i.cnblogs.com', path='/EditPosts.aspx', params='', query='opt=1', fragment='')
scheme = url_change.scheme #'https'
netloc = url_change.netloc #'i.cnblogs.com'