Pre-defined variables

Globals

Pre-defined variables

$!

The exception information message set by 'raise'.

$@

Array of backtrace of the last exception thrown.

$&

The string matched by the last successful match.

$`

The string to the left of the last successful match.

$'

The string to the right of the last successful match.

$+

The highest group matched by the last successful match.

$1

The Nth group of the last successful match. May be > 1.

$~

The information about the last match in the current scope.

$=

The flag for case insensitive, nil by default.

$/

The inp

登录查看完整内容