In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] (Zeng Nan) writes: >According to "Learning Perl", a variable name should be "a letter or >underscore, and then possibly more letters, or digits, or underscores." >But why $000 or $0000 works?
As also said in "Learning Perl", you should declare all your variables with 'my': % perl -le 'my $000' Can't use global $000 in "my" at -e line 1, at end of line Execution of -e aborted due to compilation errors. Doesn't look like it works to me. "Learning Perl" also talks about the variable $_. That doesn't fit the pattern either. But you can use it according to the rules Perl has for it; you just can't declare it with 'my' because it belongs to Perl, not you. $000 is the same sort of animal. Leave it alone, unless you want to write deliberately obfuscated programs. -- Peter Scott http://www.perldebugged.com/ *** NEW *** http://www.perlmedic.com/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
