fig06_10.pl

来自「PERL语言资料 可以用于PERL程序设计」· PL 代码 · 共 49 行

#!/usr/bin/perl
# Fig. 6.10: fig06_10.pl
# Seeding the random number generator.

# during each iteration, set seed to 1, 
# then produce three random integers
for ( 1 .. 3 ) {
   print "\n\nSetting seed to 1\n";
   srand( 1 );

   # produces same three values each time
   for ( 1 .. 3 ) {
      print "  ", 1 + int( rand( 6 ) );
   }
}

print "\n\nResetting seed\n";
srand();  # let system determine seed

for (1 .. 3) {

   print "\n\nAfter seed has been reset\n";

   for ( 1 .. 3 ) {
      print "  ", 1 + int( rand( 6 ) );
   }

}

print "\n";



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