Книги автора: Fedora™ Unleashed, 2008 edition
/ Книги автора: Fedora™ Unleashed, 2008 edition
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Книга: Fedora™ Unleashed, 2008 edition
Special String Constants
Special String Constants
Perl supports string constants that have special meaning or cannot be entered from the keyboard. Table 25.6 shows most of the constants supported by Perl.
TABLE 25.6 Perl Special String Constants
| Expression | Meaning |
|---|---|
|
The means of including a backslash |
a |
The alert or bell character |
| b | Backspace |
c |
Control character (like holding the Ctrl key down and pressing the C character) |
e |
Escape |
f |
Formfeed |
| n | Newline |
r |
Carriage return |
t |
Tab |
xNN |
Indicates that NN is a hexadecimal number |
| NNN | Indicates that NNN is an octal (base 8) number |
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