Empty Set With Left Arrow Above vs Left Black Tortoise Shell Bracket
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属性对比
| 属性 | ⦴ 29B4 | ⦗ 2997 |
|---|---|---|
| 名称 | Empty Set With Left Arrow Above | Left Black Tortoise Shell Bracket |
| 分类 | Math Symbols | Math Symbols |
| 块 | Miscellaneous Mathematical Symbols-B | Miscellaneous Mathematical Symbols-B |
| 文字系统 | Zyyy | Zyyy |
| 通用类别 | Math Symbol (Sm) | Open Punctuation (Ps) |
| 双向 | ON | ON |
编码对比
| 格式 | 29B4 | 2997 |
|---|---|---|
| Unicode | U+29B4 | U+2997 |
| HTML Decimal | ⦴ | ⦗ |
| HTML Hex | ⦴ | ⦗ |
| CSS | \29B4 | \2997 |
| JavaScript | \u{29B4} | \u{2997} |
| Python | \u29b4 | \u2997 |
| UTF-8 | e2 a6 b4 | e2 a6 97 |
如何区分
Empty Set With Left Arrow Above 和 Left Black Tortoise Shell Bracket 均属于 Math Symbols 类别和 Miscellaneous Mathematical Symbols-B 区块。请比较下方的码位、编码及 Unicode 属性以区分它们。
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。