import re
str = """http://www.baidu.com/sasaa/
www.aa222a.com//
http://eeee.com/
https://aaaa.com/
http://blog.2222.com/sasaa/
http://www.ali.com/"""
regular = re.compile(r'[http|https]+://(?:\w*\W)?(\w*\.com).*')
res=re.findall(regular,str)
print(res)
下面是输出结果