🔢 数字筛选器（从文本提取并过滤数字）Filter Numbers
从任意文本中提取数字，并按条件筛选：大于、小于、区间、正数、负数、偶数、奇数、整数或小数，可去重和排序。支持千分位和全角数字。Pull the numbers out of any text and keep only those that match: greater than, less than, between, positive, negative, even, odd, integer or decimal — with optional de-duplication and sorting. Thousands separators and full-width digits work.
使用说明与常见问题How-to & FAQ
「数字筛选器（从文本提取并过滤数字）」是什么？What is the Filter Numbers tool?
从任意文本中提取数字，并按条件筛选：大于、小于、区间、正数、负数、偶数、奇数、整数或小数，可去重和排序。支持千分位和全角数字。Pull the numbers out of any text and keep only those that match: greater than, less than, between, positive, negative, even, odd, integer or decimal — with optional de-duplication and sorting. Thousands separators and full-width digits work.
如何使用「数字筛选器（从文本提取并过滤数字）」？How do I use the Filter Numbers tool?
在「数字筛选器（从文本提取并过滤数字）」中，把内容粘贴或输入到上方输入框，按需设置「A」、「B」，结果会实时显示在下方，点击「复制结果」即可复制。In the Filter Numbers: Paste or type into the input box, adjust "A", "B"; the result appears below instantly — click "Copy result" to copy it.
负号和小数点能识别吗？Are minus signs and decimals recognised?
能。-7、−7（数学减号）、3.5、.5 和科学计数法 1e3 都会被识别。注意 2026-10-18 这类日期会被拆成 2026、-10、-18，因为连字符紧挨数字时被当作负号。Yes. -7, −7 (maths minus), 3.5, .5 and scientific notation like 1e3 are all read. Note that a date like 2026-10-18 becomes 2026, -10 and -18, because a hyphen directly before digits is read as a minus sign.
1,250 会被当成一个数还是两个？Is 1,250 one number or two?
默认勾选“识别千分位”，1,250 视为 1250。如果你的文本是用逗号分隔的数字列表（如 1,2,3），请取消勾选，否则 1,250 之类会被合并。With 'Read thousands commas' on (default), 1,250 is 1250. If your text is a comma-separated list such as 1,2,3, untick it so values are not merged.
偶数/奇数如何处理小数？How do even/odd treat decimals?
只有整数才有奇偶，小数（如 2.5）在奇偶筛选中都会被排除。Only integers are even or odd; decimals such as 2.5 are excluded by both filters.
输出的数字是什么格式？How are the numbers written in the output?
按原文写法输出（只去掉千分位逗号），例如 1e3 仍输出 1e3、10.0 仍输出 10.0；筛选和去重按数值进行，所以 10 和 10.0 去重后只留一个。超过 2^53 的长整数按精确值比较和判断奇偶；超出可表示范围的数字（如 1e400）会被排除并提示。Numbers are written as in the text (only thousands commas removed): 1e3 stays 1e3 and 10.0 stays 10.0. Filtering and de-duplication use the numeric value, so 10 and 10.0 count as one. Integers above 2^53 are compared and tested for even/odd exactly; numbers too large to represent (such as 1e400) are excluded with a notice.
处理大段文本会卡吗？Can it handle long text?
「数字筛选器（从文本提取并过滤数字）」在浏览器中直接处理，几 MB 以内的文本通常瞬间完成；文本不会离开你的设备。The Filter Numbers runs in your browser; text up to a few MB is usually processed instantly and never leaves your device.
「数字筛选器（从文本提取并过滤数字）」免费吗？需要注册吗？Is the Filter Numbers free? Do I need an account?
「数字筛选器（从文本提取并过滤数字）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Filter Numbers is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.