https://doc.rust-lang.org/reference/tokens.html

其中包括多行原始字符串，你可以把HTML放进去，都是能装的。它的特点就是超级能装。

什么样的字符串都可以往里面装

 

Examples
Characters and strings
Example    # sets    Characters    Escapes
Character    'H'    0    All Unicode    Quote & ASCII & Unicode
String    "hello"    0    All Unicode    Quote & ASCII & Unicode
Raw string    r#"hello"#    0 or more*    All Unicode    N/A
Byte    b'H'    0    All ASCII    Quote & Byte
Byte string    b"hello"    0    All ASCII    Quote & Byte
Raw byte string    br#"hello"#    0 or more*    All ASCII    N/A
* The number of #s on each side of the same literal must be equivalent

ASCII escapes
Name
\x41    7-bit character code (exactly 2 digits, up to 0x7F)
\n    Newline
\r    Carriage return
\t    Tab
\\    Backslash
\0    Null
Byte escapes
Name
\x7F    8-bit character code (exactly 2 digits)
\n    Newline
\r    Carriage return
\t    Tab
\\    Backslash
\0    Null
Unicode escapes
Name
\u{7FFF}    24-bit Unicode character code (up to 6 digits)
Quote escapes
Name
\'    Single quote
\"    Double quote
Numbers
Number literals*    Example    Exponentiation    Suffixes
Decimal integer    98_222    N/A    Integer suffixes
Hex integer    0xff    N/A    Integer suffixes
Octal integer    0o77    N/A    Integer suffixes
Binary integer    0b1111_0000    N/A    Integer suffixes
Floating-point    123.0E+77    Optional    Floating-point suffixes