(.*)是贪婪匹配,会把满足正则的尽可能多的往后匹配
(.*?)是非贪婪匹配,会把满足正则的尽可能少匹配
import re
s = "<a>哈哈</a><a>呵呵</a>"
res1 = re.findall("<a>(.*)</a>",s)
print("贪婪匹配",res1)
res1 = re.findall("<a>(.*?)</a>",s)
print("非贪婪匹配",res1)
# 输出结果
贪婪匹配 ['哈哈</a><a>呵呵']
非贪婪匹配 ['哈哈', '呵呵']
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