Closed Subset Or Equal To vs Plus-Minus Sign
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://symbolfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://symbolfyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://symbolfyi.com/entity//)Use the native HTML custom element.
VS
属性对比
| 属性 | ⫑ 2AD1 | ± 00B1 |
|---|---|---|
| 名称 | Closed Subset Or Equal To | Plus-Minus Sign |
| 分类 | Math Symbols | Math Symbols |
| 块 | Supplemental 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 | 2AD1 | 00B1 |
|---|---|---|
| Unicode | U+2AD1 | U+00B1 |
| HTML Decimal | ⫑ | ± |
| HTML Hex | ⫑ | ± |
| CSS | \2AD1 | \00B1 |
| JavaScript | \u{2AD1} | \u{B1} |
| Python | \u2ad1 | \u00b1 |
| UTF-8 | e2 ab 91 | c2 b1 |
如何区分
Closed Subset Or Equal To 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。