- do not escape escaping characters
- make multiline string
so
str s=@"
test\test
";
is equivalent to
str s="\r\n";
s=s+" test\\test\r\n"
so it is useful when you want to make methods or AOT pathes (BTW why Fred uses string for pathers ("\\Forms\\Address\\Data Sources\\Address\\Fields\\AddrRecId") instad of raw strings (@"\Forms\Address\Data Sources\Address\Fields\AddrRecId")
see also