∅
U+2205
| 名称 | ∅ 空集 |
| 编码 | U+2205 |
| HTML代码 | ∅ ∅ |
| CSS代码 | \2205 |
| 实体 | ∅ |
| 分区 | 数学运算符 |
| 版本 | 1.1 (1993) |
| Age | 1.1 |
| 镜像 | No |
| Bidi Paired Bracket Type | None |
| Composition Exclusion | No |
| Case Folding | 2205 |
| Simple Case Folding | 2205 |
编码
| 编码 | hex | dec(bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | E2 88 85 | 226 136 133 | 14846085 | 11100010 10001000 10000101 |
| UTF-16BE | 22 05 | 34 5 | 8709 | 00100010 00000101 |
| UTF-16LE | 05 22 | 5 34 | 1314 | 00000101 00100010 |
| UTF-32BE | 00 00 22 05 | 0 0 34 5 | 8709 | 00000000 00000000 00100010 00000101 |
| UTF-32LE | 05 22 00 00 | 5 34 0 0 | 86114304 | 00000101 00100010 00000000 00000000 |