| HTML Entity (dec) | 退 |
| HTML Entity (hex) | 退 |
| UTF-8 (hex) | 0xe98080 / 0xe9 0x80 0x80 (3 bytes) |
| UTF-8 (dec) | 233, 128, 128 (3 bytes) |
| UTF-16-BE (hex) | 0x9000 / 0x90 0x00 (2 bytes) |
| UTF-16-BE (dec) | 144, 0 (2 bytes) |
| UTF-32-BE (hex) | 0x9000 / 0x00 0x00 0x90 0x00 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 144, 0 (4 bytes) |
| C/C++/Java source code | "\u9000" |
| Python source code | "\u9000" |