- HTML5
XIIXII- C
\u0058\u0049\u0049 (C99)\U000058\U000049\U000049 (C99)\x58\x49\x49 (encoding-dependent)\130\111\111 (encoding-dependent)- C++
\u{58}\u{49}\u{49} (C++23)\x{58}\x{49}\x{49} (C++23, encoding-dependent)\o{130}\o{111}\o{111} (C++23, encoding-dependent)\U00000058\U00000049\U00000049\u0058\u0049\u0049\x58\x49\x49 (encoding-dependent)\130\111\111 (encoding-dependent)- Java
\u0058\u0049\u0049- JavaScript
\u{58}\u{49}\u{49}\u0058\u0049\u0049\x58\x49\x49- CSS
\58\49\49\000058\000049\000049- Quoted-Printable
=58=49=49- URL
%58%49%49