± 更改整数正负号Change Integer Sign

使用说明与常见问题How-to & FAQ

「更改整数正负号」是什么？What is the Change Integer Sign tool?

批量更改整数的正负号：全部取相反数、全部变正、全部变负，或去掉符号。适合整理数据，本地处理。Change the sign of integers in bulk: negate all, make all positive, make all negative, or strip signs. Handy for cleaning data. Processed locally.

如何使用「更改整数正负号」？How do I use the Change Integer Sign tool?

在「更改整数正负号」中，把内容粘贴或输入到上方输入框，按需设置「方式」，结果会实时显示在下方，点击「复制结果」即可复制。例如输入「5, -3」，得到「-5, 3」。Paste your integers and choose a "Mode": Negate flips every sign, All positive takes absolute values and All negative makes every value negative. For example 5, -3 becomes -5, 3 with Negate; click "Copy result" to copy the output.

怎样输入多个整数？How do I enter several integers?

每行一个，或用空格、逗号、分号分隔；可带千位逗号和下划线，负数前面加 -。One per line, or separated by spaces, commas or semicolons; thousands commas and underscores are fine, put - in front of negatives.

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.

输入和输出是什么样的？What does the input and output look like?

例如在「更改整数正负号」中输入 5 ⏎ -3 ⏎ 0，输出为：-5 ⏎ 3 ⏎ 0（⏎ 表示换行）。For example, the Change Integer Sign turns the input 5 ⏎ -3 ⏎ 0 into: -5 ⏎ 3 ⏎ 0 (⏎ marks a line break).

有哪些选项可以调整？What options can I adjust?

「更改整数正负号」的设置：「方式」可选 取相反数、全部变正（绝对值）、全部变负（默认 取相反数）；可勾选：「千位逗号」。改动任一选项后结果会按新设置重新生成。Settings in the Change Integer Sign — "Mode": Negate, All positive (absolute), All negative (default Negate); tick boxes: "Thousands commas". Changing any option regenerates the result with the new setting.

「更改整数正负号」免费吗？需要注册吗？Is the Change Integer Sign free? Do I need an account?

「更改整数正负号」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 Change Integer Sign is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.