2024年3月8日
\uFFFF where FFFF are 4 hexadecimal digits
Unicode code point
\u{FFFF} where FFFF are 1 to 4 hexadecimal digits
Unicode code point
\xFF where FF are 2 hexadecimal digits
Hexadecimal escape
\xFFFF where FFFF are 4 hexadecimal digits
Unicode code point
\x{FFFF} where FFFF are 1 to 4 hexadecimal digits
Unicode code point
\X
Unicode grapheme
\pL where L is a Unicode category
Unicode category
\PL where L is a Unicode category
Unicode…