readline

readline

readline EXPR

readline

Reads from the filehandle whose typeglob is contained in EXPR (or from *ARGV if EXPR is not provided). In scalar context, each call reads and returns the next line until end-of-file is reached, whereupon the subsequent call returns undef- In list context, reads until end-of-file is reached and returns a list of lines- Note that the notion of .html?lang=en"line" used here is whatever you may have defined with $/ or $INPUT_RECORD_SEPARATOR ). See $/ in perlvar.

When $/ is set to 登录查看完整内容