| HTML Entity (dec) | ！ |
| HTML Entity (hex) | ！ |
| UTF-8 (hex) | 0xefbc81 / 0xef 0xbc 0x81 (3 bytes) |
| UTF-8 (dec) | 239, 188, 129 (3 bytes) |
| UTF-16-BE (hex) | 0xff01 / 0xff 0x01 (2 bytes) |
| UTF-16-BE (dec) | 255, 1 (2 bytes) |
| UTF-32-BE (hex) | 0xff01 / 0x00 0x00 0xff 0x01 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 255, 1 (4 bytes) |
| C/C++/Java source code | "\uff01" |
| Python source code | "\uff01" |