⇆
U+21C6
向左箭头在向右箭头上 LEFTWARDS ARROW OVER RIGHTWARDS ARROW
| 浏览器默认显示 | ⇆ |
| 码位（点代码） | U+21C6 |
| 序号 | 8646 |
| 区段 | 箭头符号 |
| 加入Unicode版本 | 1.1 |
| HTML实体 | ⇆ 或 ⇆ |
| CSS | \21C6 |
| URL编码 | %E2%87%86 |
| 域名编码 | xn--n7g |
| UTF编码 | |
| UTF-8 | 0xE2 0x87 0x86 |
| UTF-16BE | 0x21 0xC6 |
| UTF-16LE | 0xC6 0x21 |
| UTF-32BE | 0x00 0x00 0x21 0xC6 |
| UTF-32LE | 0xC6 0x21 0x00 0x00 |