Perl: difference between + and *
+ means 1 or more occurences* means 0 or more occurences
for examples:
$str = "good food";
($str1 = $str) =~ s/o*/e;
($str2 = $str) =~ s/o+/e;
result is:
$str1: egood food
$str2: ged food
posted by James Pei @ 4:52 PM
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