| HTML Entity (dec) | 允 |
| HTML Entity (hex) | 允 |
| UTF-8 (hex) | 0xe58581 / 0xe5 0x85 0x81 (3 bytes) |
| UTF-8 (dec) | 229, 133, 129 (3 bytes) |
| UTF-16-BE (hex) | 0x5141 / 0x51 0x41 (2 bytes) |
| UTF-16-BE (dec) | 81, 65 (2 bytes) |
| UTF-32-BE (hex) | 0x5141 / 0x00 0x00 0x51 0x41 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 81, 65 (4 bytes) |
| C/C++/Java source code | "\u5141" |
| Python source code | "\u5141" |