IP地址
匹配0~255的表達式:
(25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)
匹配0.0.0.0~255.255.255.255的表達式:
((25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)\.(25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)\.(25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)\.(25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d))
端口
匹配0~65535的表達式:
(6553[0-5]|655[0-2]\d|65[0-4]\d{2}|6[0-4]\d{4}|[1-5]\d{4}|[1-9]\d{1,3}|[0-9])
