Tan Rui wrote:
> here is my perl script:
>
> $a = "aaa bbb ccc ddd ttt";
> $a =~ tr/a-z/ttt/d;
> print "$a\n";
>
> But I cannot understant why the result is "ttt ttt ttt". Can someone
> explain it to me? thanks.
a, b and c are replaced by the first, second and third t, resp.
The rest (d ... z) are deleted - per delete criteria:
d Delete found but unreplaced characters.
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