含义:
Newline ~n
Tab ~t
Vertical tab ~v
Carriage return ~r
Formfeed ~f
Backspace ~b
Double quote ~"
Single quote ~'
Tilde ~~
Decimal ~###
Hexadecimal ~h##
Octal ~o###
用法:
dog~n" A string containing the word dog followed by a newline character
"dog~tcat~ttiger" A string containing the word dog, a tab character, the word cat, another tab character, and the word tiger