Code · 2010-01-07

perl的for与foreach 还有map

perl的for循环,foreach循环..纯笔记
C语言风格的for

#!/usr/bin/perl
for ($a=1;$a<=5;$a++){
   print "$a\n"
}

perl风格的for

#!/usr/bin/perl
@a = (1..5);
for (@a) {
   print "$_\n"
}

perl的foreach

#!/usr/bin/perl
@a = (1..5);
foreach  (@a) {
   print "$_\n";
}

perl的map,值得深入研究

#!/usr/bin/perl
@a = (1..5);
print map{"$_\n"}@a;