On 10-12-03 11:12 AM, Odin Liu wrote:
Still confusing. We know that inner loop's $_ overwrite the outer loop's
$_ only in the inner loop. When the inner loop was over, the $_ would be
it was in outer loop before the inner loop begin. Outer $_ would be
restored by Perl automatically.
But why this behavior changes when the inner loop is a diamond
operation? If it is a Perl syntax, then how can I open a list of file,
read their content, and then keep the file name list as it was?
No, the behaviour is different because the inner loop is a while one. A
local copy of $_ would be made if the inner loop was another foreach one.
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Just my 0.00000002 million dollars worth,
Shawn
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