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正则表达式测试Regex Tester

用示例文本测试 JavaScript 正则，实时高亮匹配并显示分组。Test a JavaScript regular expression on sample text with live highlighting and capture groups.

理念：Idea: 边写边看结果，少走弯路。See results as you type; fewer detours.

解决：Solves: 实时看匹配结果，少走试错See matches live while you write

适合：For: 写正则表达式的人Anyone writing regular expressions

可用Available在浏览器中运行Runs in your browser
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在你的设备上本地处理。这里输入的内容不会上传。Processed locally on your device. Nothing you enter here is uploaded.

使用方法How to use

  1. 1输入表达式并选择标志。Type a pattern and choose flags.
  2. 2粘贴测试文本。Paste test text.
  3. 3查看高亮的匹配和分组。Read the highlighted matches and groups.

说明Good to know

  • 使用浏览器的 JavaScript 正则引擎，个别写法与 PCRE、Python 不同。Uses the browser's JavaScript regex engine; a few features differ from PCRE and Python.
  • 最多显示 1000 处匹配。写得不好的表达式遇到长文本可能很慢，卡住时刷新页面即可。Shows up to 1000 matches. A badly written pattern on long text can be slow; reload the page if it hangs.

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