正则表达式测试工具

\d{3}-\d{4}

[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}

https?://[^\s]+

[\u4e00-\u9fa5]+

\b(?:\d{1,3}\.){3}\d{1,3}\b

\d{4}-\d{2}-\d{2}

#[0-9a-fA-F]{6}

<[^>]+>