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如何输入符号Pi

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要在键盘上输入π几乎和在公式中应用π一样难。但无论你是使用Mac还是PC，输入符号π都没有看上去那么难。如果你希望快速地输入π，请参考以下简易步骤。

方法 1

方法 1 的 4:

在Mac上输入符号Pi

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/9\/9b\/Type-the-Pi-Symbol-Step-1-Version-2.jpg\/v4-460px-Type-the-Pi-Symbol-Step-1-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/9\/9b\/Type-the-Pi-Symbol-Step-1-Version-2.jpg\/v4-728px-Type-the-Pi-Symbol-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":183,"bigWidth":728,"bigHeight":290,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

你可以在键盘的右下方找到该键，它位于左箭头的左边。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/2b\/Type-the-Pi-Symbol-Step-2-Version-2.jpg\/v4-460px-Type-the-Pi-Symbol-Step-2-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/2b\/Type-the-Pi-Symbol-Step-2-Version-2.jpg\/v4-728px-Type-the-Pi-Symbol-Step-2-Version-2.jpg","smallWidth":460,"smallHeight":183,"bigWidth":728,"bigHeight":290,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

这将可以快速输入符号π。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/8\/85\/Type-the-Pi-Symbol-Step-3-Version-2.jpg\/v4-460px-Type-the-Pi-Symbol-Step-3-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/85\/Type-the-Pi-Symbol-Step-3-Version-2.jpg\/v4-728px-Type-the-Pi-Symbol-Step-3-Version-2.jpg","smallWidth":460,"smallHeight":349,"bigWidth":728,"bigHeight":552,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

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方法 2

方法 2 的 4:

在PC上输入符号Pi

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/a\/a0\/Type-the-Pi-Symbol-Step-4-Version-2.jpg\/v4-460px-Type-the-Pi-Symbol-Step-4-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a0\/Type-the-Pi-Symbol-Step-4-Version-2.jpg\/v4-728px-Type-the-Pi-Symbol-Step-4-Version-2.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

你可以在键盘的右边或左边找到该键。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/0\/05\/Type-the-Pi-Symbol-Step-5-Version-2.jpg\/v4-460px-Type-the-Pi-Symbol-Step-5-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/05\/Type-the-Pi-Symbol-Step-5-Version-2.jpg\/v4-728px-Type-the-Pi-Symbol-Step-5-Version-2.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

你可以在键盘的左边或邮件找到该键，它位于空格键的左边和右边。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/f\/fc\/Type-the-Pi-Symbol-Step-11.jpg\/v4-460px-Type-the-Pi-Symbol-Step-11.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/fc\/Type-the-Pi-Symbol-Step-11.jpg\/v4-728px-Type-the-Pi-Symbol-Step-11.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

数字键盘包括数字0到9，你可以在键盘的右边找到数字键盘。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/8\/85\/Type-the-Pi-Symbol-Step-3-Version-2.jpg\/v4-460px-Type-the-Pi-Symbol-Step-3-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/85\/Type-the-Pi-Symbol-Step-3-Version-2.jpg\/v4-728px-Type-the-Pi-Symbol-Step-3-Version-2.jpg","smallWidth":460,"smallHeight":349,"bigWidth":728,"bigHeight":552,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

输入数字并松开Alt键后，即可输入符号π。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b4\/Type-the-Pi-Symbol-Step-13.jpg\/v4-460px-Type-the-Pi-Symbol-Step-13.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b4\/Type-the-Pi-Symbol-Step-13.jpg\/v4-728px-Type-the-Pi-Symbol-Step-13.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

再次按下该键即可关闭。这将把你的键盘回复到以前的设置。

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方法 3

方法 3 的 4:

在笔记本电脑上输入符号Pi

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b4\/Type-the-Pi-Symbol-Step-13.jpg\/v4-460px-Type-the-Pi-Symbol-Step-13.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b4\/Type-the-Pi-Symbol-Step-13.jpg\/v4-728px-Type-the-Pi-Symbol-Step-13.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

1
很多笔记本电脑都有一个"隐藏的"小键盘，开启"Num Lock"键将可开启小键盘。在键盘的左边或右边可以找到该键。
- 如果你的键盘有这些功能，你将在一些按键的下方看到小字体的数字或字，有时它们显示不同的颜色。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/5f\/Type-the-Pi-Symbol-Step-10.jpg\/v4-460px-Type-the-Pi-Symbol-Step-10.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5f\/Type-the-Pi-Symbol-Step-10.jpg\/v4-728px-Type-the-Pi-Symbol-Step-10.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

Alt 键。 你可以在空格键的两侧找到该键。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/f\/fc\/Type-the-Pi-Symbol-Step-11.jpg\/v4-460px-Type-the-Pi-Symbol-Step-11.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/fc\/Type-the-Pi-Symbol-Step-11.jpg\/v4-728px-Type-the-Pi-Symbol-Step-11.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

3
该数字就是π的Alt代码。谨记要使用Alt代码，即位于7、8、9、U、I、O、J、K、L和M键一侧的九个数字，它们以不同的颜色显示，例如浅蓝色或黄色。不要使用常规的数字系统输入该代码。
- 在大部分键盘上，该代码可以通过"KK7"或"9OM"获得，但你还是应该查看实际的Alt代码确保输入正确。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/5f\/Type-the-Pi-Symbol-Step-10.jpg\/v4-460px-Type-the-Pi-Symbol-Step-10.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5f\/Type-the-Pi-Symbol-Step-10.jpg\/v4-728px-Type-the-Pi-Symbol-Step-10.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

符号pi将会显示。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b4\/Type-the-Pi-Symbol-Step-13.jpg\/v4-460px-Type-the-Pi-Symbol-Step-13.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b4\/Type-the-Pi-Symbol-Step-13.jpg\/v4-728px-Type-the-Pi-Symbol-Step-13.jpg","smallWidth":460,"smallHeight":201,"bigWidth":728,"bigHeight":318,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

再次按下该键即可关闭它。这将让你的键盘回到常规设置。

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方法 4

方法 4 的 4:

从互联网上复制π

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/0\/0a\/Type-the-Pi-Symbol-Step-14.jpg\/v4-460px-Type-the-Pi-Symbol-Step-14.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/0a\/Type-the-Pi-Symbol-Step-14.jpg\/v4-728px-Type-the-Pi-Symbol-Step-14.jpg","smallWidth":460,"smallHeight":233,"bigWidth":728,"bigHeight":369,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

只需搜索"pi"将很快得到结果。你也可以使用本文中的符号。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/3a\/Type-the-Pi-Symbol-Step-15.jpg\/v4-460px-Type-the-Pi-Symbol-Step-15.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/3a\/Type-the-Pi-Symbol-Step-15.jpg\/v4-728px-Type-the-Pi-Symbol-Step-15.jpg","smallWidth":460,"smallHeight":289,"bigWidth":728,"bigHeight":457,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

只需点击鼠标把光标定位到符号旁并通过鼠标的拖拉选择该符号。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/5f\/Type-the-Pi-Symbol-Step-16.jpg\/v4-460px-Type-the-Pi-Symbol-Step-16.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5f\/Type-the-Pi-Symbol-Step-16.jpg\/v4-728px-Type-the-Pi-Symbol-Step-16.jpg","smallWidth":460,"smallHeight":258,"bigWidth":728,"bigHeight":408,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

同时按下"Control"键和"C"键即可实现复制。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/a\/aa\/Type-the-Pi-Symbol-Step-17.jpg\/v4-460px-Type-the-Pi-Symbol-Step-17.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/aa\/Type-the-Pi-Symbol-Step-17.jpg\/v4-728px-Type-the-Pi-Symbol-Step-17.jpg","smallWidth":460,"smallHeight":222,"bigWidth":728,"bigHeight":351,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

这可以是Word文档、电子邮件或任何其他位置。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/4\/49\/Type-the-Pi-Symbol-Step-18.jpg\/v4-460px-Type-the-Pi-Symbol-Step-18.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/49\/Type-the-Pi-Symbol-Step-18.jpg\/v4-728px-Type-the-Pi-Symbol-Step-18.jpg","smallWidth":460,"smallHeight":243,"bigWidth":728,"bigHeight":385,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

只需同时按下"Control"键和"V"键即可粘贴符号π。

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小提示

尝试一种旧方法 - 复制π并把它粘贴到你的文档中。
尝试了解其他Alt代码并了解你的键盘所提供的功能。

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