|Think about Loose Coupling|
why such an error happened?by lightoverhead (Pilgrim)
|on Oct 20, 2008 at 00:58 UTC||Need Help??|
lightoverhead has asked for the
wisdom of the Perl Monks concerning the following question:
Hi Monks, I have run several lines of code as below:
But it reported error message:
Use of uninitialized value in concatenation (.) or string at test.pl line 5.
I don't known why it reported an error at line 5, since $chr was already declared.Thanks.