Character U+0021
Char U+0021
Char
!
Unicode
U+21
Conversion Results
dec: 33
hex: 0x21
oct: 41
bin: 00100001
Appears in charsets
Canonical
/char/u0021Unicode & UTF
Unicode 映射与其在常见编码（UTF‑8/16/32）中的表示，便于复制粘贴与调试。
| Unicode | U+21 | |
| Unicode dec | 33 | |
| UTF-8 (hex) | 21 | |
| UTF-8 (bin) | 00100001 | |
| UTF-16 | 0021 | |
| UTF-32 | 00000021 |
HTML & URL
Web 场景常用的 HTML 实体、URL 转义与 QP 编码，方便在页面/邮件/日志中使用。
| HTML Number | ! | |
| HTML Hex | ! | |
| URL Escape | %21 | |
| Quoted-printable | =21 |
Source Code Escapes
C, C++, and Java
"\u0021"
CSS Code
\0021
JavaScript
"\u0021"
Perl
\x{21}
Python 2
u"\u0021"
Python 3
"\u0021"
Ruby
\u{21}