码位

Technical/Unicode

Unicode标准中分配给每个字符的唯一数值，以U+XXXX格式表示（例如😀对应U+1F600）。

Every character in Unicode — whether a letter, symbol, or emoji — is identified by a code point. Code points range from U+0000 to U+10FFFF, providing space for over 1.1 million possible characters.

Emoji code points are mostly in the range U+1F000 to U+1FAFF. A single emoji you see on screen may actually involve multiple code points combined through mechanisms like Zero Width Joiner (ZWJ) sequences or variation selectors.

For example, the family emoji 👨‍👩‍👧‍👦 is actually seven code points joined together: U+1F468 U+200D U+1F469 U+200D U+1F467 U+200D U+1F466.

相关术语

地区标志符号 (RI) 地区标志符号 (RI)
成对使用时可组合成国旗表情符号的Unicode字符（U+1F1E6至U+1F1FF），依据ISO 3166-1 alpha-2代码对应各国国旗。 字素簇 字素簇
用户感知到的单个字符单位，可能由多个Unicode码位组合而成，但显示为单一视觉元素。 平面 平面
由65,536个连续Unicode码位构成的分组。第0平面为基本多文种平面（BMP），大多数表情符号位于第1平面（SMP）。 标签序列 标签序列
使用特殊标签字符（U+E0020至U+E007E）表示地区旗帜（如英格兰、苏格兰、威尔士）的表情符号旗帜序列。 统一码 统一码
为所有书写系统和符号集（包括表情符号）中的每个字符分配唯一编号的通用字符编码标准。 肤色修饰符 肤色修饰符
基于菲茨帕特里克色度分级的五个Unicode修饰字符（U+1F3FB至U+1F3FF），用于改变人物表情符号的肤色。

相关工具

🔢 Unicode 查询 Unicode 查询
输入 U+1F600 等码位，获取表情符号、编码详情、UTF-8/16 字节和 HTML 实体。 🔍 序列分析器 序列分析器
将 ZWJ 序列、肤色修饰符、键帽序列和旗帜对解析为独立组成部分。

相关故事

Unicode Lookup: Find Any Emoji by Code Point
Enter a Unicode code point like U+1F600 or paste an emoji to see its full encoding breakdown — UTF-8, UTF-16, HTML entities, and more.
What Are ZWJ Sequences? How Emoji Combine
Learn how Zero Width Joiner (ZWJ) sequences combine multiple emoji into one — from family emoji to professions to flags.
Unicode Normalization Forms: NFC, NFD, NFKC, NFKD Explained
Understand Unicode normalization forms NFC, NFD, NFKC, and NFKD — what they do, why they matter for emoji, and when to use each one.
Unicode Emoji Properties: Extended_Pictographic, Emoji_Presentation, and More
A developer's guide to Unicode emoji properties: what Extended_Pictographic, Emoji_Presentation, Emoji_Modifier, and Emoji_Component mean in practice.
Text vs Emoji Presentation Selectors: VS15 (U+FE0E) and VS16 (U+FE0F)
How Unicode variation selectors VS15 and VS16 control text vs emoji presentation — with code examples for detection and normalization.
Skin Tone Modifiers: How Emoji Diversity Works
How emoji skin tone modifiers work — the Fitzpatrick scale, encoding details, and the impact on digital representation.