61 lines
1.8 KiB
Markdown
61 lines
1.8 KiB
Markdown
---
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title: 数量
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id: quantity
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date: 2018-08-07
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full_link:
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short_description: >
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使用 SI 后缀的小数或大数的整数表示。
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aka:
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tags:
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- core-object
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---
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<!--
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---
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title: Quantity
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id: quantity
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date: 2018-08-07
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full_link:
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short_description: >
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A whole-number representation of small or large numbers using SI suffixes.
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aka:
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tags:
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- core-object
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---
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-->
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<!--more-->
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数量是使用紧凑的整数表示法的小数或大数的表示，并带有国际计量单位制（SI）后缀。
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小数用 milli 单位表示，而大数用 kilo、mega 或 giga 单位表示。
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例如，数字 `1.5` 表示为`1500m`，
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而数字`1000`表示为`1k`，`1000000`表示为`1M`。
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您还可以指定二进制表示法后缀; 数字 2048 可以写成`2Ki`。
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公认的十进制（10的幂）单位是 `m`（milli）、`k`（kilo，
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有意小写）、`M`（mega），`G`（giga）、`T`（terra）、`P`（peta）、
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`E`（exa）。
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公认的二进制（2的幂）单位是 `Ki` (kibi)、 `Mi` (mebi)、`Gi` (gibi)、
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`Ti` (tebi)、 `Pi` (pebi)、 `Ei` (exbi)。
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<!--
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Quantities are representations of small or large numbers using a compact,
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whole-number notation with SI suffixes. Fractional numbers are represented
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using milli units, while large numbers can be represented using kilo,
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mega, or giga units.
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For instance, the number `1.5` is represented as `1500m`, while the number `1000`
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can be represented as `1k`, and `1000000` as `1M`. You can also specify
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binary-notation suffixes; the number 2048 can be written as `2Ki`.
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The accepted decimal (power-of-10) units are `m` (milli), `k` (kilo,
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intentionally lowercase), `M` (mega), `G` (giga), `T` (terra), `P` (peta),
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`E` (exa).
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The accepted binary (power-of-2) units are `Ki` (kibi), `Mi` (mebi), `Gi` (gibi),
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`Ti` (tebi), `Pi` (pebi), `Ei` (exbi).
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-->
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