🧹 去除整数中的千位逗号Remove Commas from an Integer
去掉整数写法里的千位逗号（1,234,567 → 1234567），可批量处理，保留负号。本地处理。Strip thousands commas from integer notation (1,234,567 -> 1234567), in bulk, keeping signs. Processed locally.
使用说明与常见问题How-to & FAQ
「去除整数中的千位逗号」是什么？What is the Remove Commas from an Integer tool?
去掉整数写法里的千位逗号（1,234,567 → 1234567），可批量处理，保留负号。本地处理。Strip thousands commas from integer notation (1,234,567 -> 1234567), in bulk, keeping signs. Processed locally.
如何使用「去除整数中的千位逗号」？How do I use the Remove Commas from an Integer tool?
在「去除整数中的千位逗号」中，把内容粘贴或输入到上方输入框，结果会实时显示在下方，点击「复制结果」即可复制。例如输入「1_000 -2_500_000」，得到「1000 -2500000」。Paste integers written with thousands separators, such as 1,234,567 or 1_000. The commas and underscores are removed and the signs kept, so 1_000 -2_500_000 becomes 1000 -2500000; click "Copy result" to copy the output.
会接受哪些逗号写法？Which comma formats are accepted?
只接受标准的千位分组：逗号每 3 位一个（1,234、-1,234,567）。1,23 或 1234,567 这样位置不对的写法会报错，不会悄悄拼成 123；如果其实是两个数，请用空格分开。小数（1,000.50）也会报错。Only standard thousands grouping, with a comma every 3 digits (1,234 or -1,234,567). Misplaced commas such as 1,23 or 1234,567 give an error instead of silently becoming 123; if they are really two numbers, separate them with a space. Decimals such as 1,000.50 are rejected too.
用空格分组的数（1 000）呢？What about numbers grouped with spaces (1 000)?
空格、分号和换行都是分隔符，所以 1 000 会被当作 1 和 000 两个数，原样保留（不会变成 1 0），结果说明里会提示。要合并，请先删除数字中间的空格。下划线分组（1_000）会去掉下划线。Spaces, semicolons and line breaks separate values, so 1 000 is read as two values, 1 and 000, and left as is (not turned into 1 0); the info line points this out. To merge them, delete the space first. Underscore grouping (1_000) has the underscores removed.
结果精确吗？Are the results exact?
精确。所有整数都按大整数（BigInt）处理，不经过浮点，超过 2^53 的数（例如 9007199254740993）也不会被舍入；几千上万行也是线性处理。Yes. Every value is handled as a big integer (BigInt) with no floating-point step, so numbers above 2^53 such as 9007199254740993 are never rounded; thousands of lines are processed in linear time.
「去除整数中的千位逗号」免费吗？需要注册吗？Is the Remove Commas from an Integer free? Do I need an account?
「去除整数中的千位逗号」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 Remove Commas from an Integer is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.