src = "security/afafsff/?ip=123.4.56.78&id=45"，请写一段代码用正则匹配出ip
匹配ip地址的python正则表达式
'^([01]?dd?|2[0-4]d|25[0-5]).([01]?dd?|2[0-4]d|25[0-5]).([01]?dd?|2[0-4]d|25[0-5]).([01]?dd?|2[0-4]d|25[0-5])$'
1 >>> re.findall(r'([01]?dd?|2[0-4]d|25[0-5]).([01]?dd?|2[0-4]d|25[0-5]).([01]?dd?|2[0-4]d|25[0-5]).([01]?dd?|2[0-4]d|25[0-5])', src)
2 [('123', '4', '56', '78')]