文件操作 - synopsis.pl
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文件: /usr/share/doc/perl-constant/eg/synopsis.pl
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#!/usr/bin/perl # # Straight from the synopsis. # use strict; use constant PI => 4 * atan2(1, 1); use constant DEBUG => 0; print "Pi equals ", PI, "...\n" if DEBUG; use constant { SEC => 0, MIN => 1, HOUR => 2, MDAY => 3, MON => 4, YEAR => 5, WDAY => 6, YDAY => 7, ISDST => 8, }; use constant WEEKDAYS => qw( Sunday Monday Tuesday Wednesday Thursday Friday Saturday ); print "Today is ", (WEEKDAYS)[ (localtime)[WDAY] ], ".\n";
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