| HTML Entity (dec) | １ |
| HTML Entity (hex) | １ |
| UTF-8 (hex) | 0xefbc91 / 0xef 0xbc 0x91 (3 bytes) |
| UTF-8 (dec) | 239, 188, 145 (3 bytes) |
| UTF-16-BE (hex) | 0xff11 / 0xff 0x11 (2 bytes) |
| UTF-16-BE (dec) | 255, 17 (2 bytes) |
| UTF-32-BE (hex) | 0xff11 / 0x00 0x00 0xff 0x11 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 255, 17 (4 bytes) |
| C/C++/Java source code | "\uff11" |
| Python source code | "\uff11" |