正则表达式测试

^[\w.-]+@[\w.-]+\.\w+$

^1[3-9]\d{9}$

^\d{17}[\dXx]$

^https?://[^\s/$.?#].[^\s]*$

^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$

[\u4e00-\u9fa5]+

^\d+$

^[a-zA-Z]+$

^[a-zA-Z0-9]+$

^\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01])$

^([01]\d|2[0-3]):([0-5]\d):([0-5]\d)$

<[^>]+>

\s+

^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$