fine tune

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krahets 2023-10-05 14:34:42 +08:00
parent bcb5bf641a
commit 04e2a46bcd
3 changed files with 6 additions and 38 deletions

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@ -80,8 +80,8 @@ UTF-8 的编码规则并不复杂,分为以下两种情况。
出于以上原因,部分编程语言提出了一些不同的编码方案。
- Python 3 使用一种灵活的字符串表示,存储的字符长度取决于字符串中最大的 Unicode 码点。对于全部是 ASCII 字符的字符串,每个字符占用 1 个字节;如果字符串中包含的字符超出了 ASCII 范围但全部在基本多语言平面BMP每个字符占用 2 个字节;如果字符串中有超出 BMP 的字符,那么每个字符占用 4 个字节。
- Python 中的 `str` 使用 Unicode 编码,并采用一种灵活的字符串表示,存储的字符长度取决于字符串中最大的 Unicode 码点。若字符串中全部是 ASCII 字符,则每个字符占用 1 个字节;如果有字符超出了 ASCII 范围但全部在基本多语言平面BMP则每个字符占用 2 个字节;如果有超出 BMP 的字符,则每个字符占用 4 个字节。
- Go 语言的 `string` 类型在内部使用 UTF-8 编码。Go 语言还提供了 `rune` 类型,它用于表示单个 Unicode 码点。
- Rust 语言的 str 和 String 类型在内部使用 UTF-8 编码。Rust 也提供了 char 类型,用于表示单个 Unicode 码点。
- Rust 语言的 str 和 String 类型在内部使用 UTF-8 编码。Rust 也提供了 `char` 类型,用于表示单个 Unicode 码点。
需要注意的是,以上讨论的都是字符串在编程语言中的存储方式,**这和字符串如何在文件中存储或在网络中传输是两个不同的问题**。在文件存储或网络传输中,我们通常会将字符串编码为 UTF-8 格式,以达到最优的兼容性和空间效率。

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@ -1,36 +0,0 @@
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@ -78,6 +78,10 @@
font-weight: 500;
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