1、匹配手机号
>>> re.findall(r"d{11}","abc13988889999cde13810635189") ['13988889999', '13810635189'] >>> >>> re.findall(r"d{11}","abc13988889999cde1381063518923") ['13988889999', '13810635189']
>>> re.findall(r"d{11}","abc 13988889999 cde 13810635189") ['13988889999', '13810635189']
2、匹配单词
>>> re.findall(r"[a-zA-Z]+","I am a good boy!You too!~") ['I', 'am', 'a', 'good', 'boy', 'You', 'too']
>>> len(re.findall(r"[a-zA-Z]+","I am a good boy!You too!~")) 7
3、匹配IP：xxx.xxx.xxx.xxx 四段数字，三个点（匹配最简单的，比较复杂的就不验证了）
>>> re.search(r"d{1,3}.d{1,3}.d{1,3}.d{1,3}","0.1.22.168") <_sre.SRE_Match object; span=(0, 10), match='0.1.22.168'>