替换字符 �
| 配對後視鏡支架類型（bidi） | None |
| 成分排除 | No |
| 案例變更 | FFFD |
| 簡單的大小寫更改 | FFFD |
| Grapheme_Base | + |
| scripts | Common |
| 编码 | hex | dec (bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | EF BF BD | 239 191 189 | 15712189 | 11101111 10111111 10111101 |
| UTF-16BE | FF FD | 255 253 | 65533 | 11111111 11111101 |
| UTF-16LE | FD FF | 253 255 | 65023 | 11111101 11111111 |
| UTF-32BE | 00 00 FF FD | 0 0 255 253 | 65533 | 00000000 00000000 11111111 11111101 |
| UTF-32LE | FD FF 00 00 | 253 255 0 0 | 4261347328 | 11111101 11111111 00000000 00000000 |