Contains As Normal Subgroup vs Plus-Minus Sign
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属性对比
| 属性 | ⊳ 22B3 | ± 00B1 |
|---|---|---|
| 名称 | Contains As Normal Subgroup | Plus-Minus Sign |
| 分类 | Math Symbols | Math Symbols |
| 块 | Mathematical Operators | Latin-1 Supplement |
| 文字系统 | Zyyy | Zyyy |
| 通用类别 | Math Symbol (Sm) | Math Symbol (Sm) |
| 双向 | ON | ET |
编码对比
| 格式 | 22B3 | 00B1 |
|---|---|---|
| Unicode | U+22B3 | U+00B1 |
| HTML Decimal | ⊳ | ± |
| HTML Hex | ⊳ | ± |
| CSS | \22B3 | \00B1 |
| JavaScript | \u{22B3} | \u{B1} |
| Python | \u22b3 | \u00b1 |
| UTF-8 | e2 8a b3 | c2 b1 |
如何区分
Contains As Normal Subgroup 和 Plus-Minus Sign 同属 Math Symbols 类别，但位于不同的 Unicode 区块。请查看下方对比表了解编码和属性差异。
提示：将字符粘贴到 hex 编辑器中，或使用
charCodeAt()
在 JavaScript 中检查实际码位。