正则表达式

.*? 贪婪匹配

例：<img src="test.jpg" width="60px" height="80px"/>

规则：src=".*?"
结果：src="test.jpg"

.*+ 多匹配

例：Send personal email to ben@forta.com or
ben.forta@forta.com . For questions about a
book use support@forta.com . If your message
is urgent try ben@urgent.forta.com . Feel
free to send unsolicited email to
spam@forta.com (wouldn't it be nice if
it were that simple, huh?).

规则：[\w.]+@[\w.]+\.\w+

结果

Send personal email to ben@forta.com or
ben.forta@forta.com . For questions about a
book use support@forta.com . If your message
is urgent try ben@urgent.forta.com . Feel
free to send unsolicited email to
spam@forta.com (wouldn't it be nice if
it were that simple, huh?).