perl6: hash小笔记

 > my %h = ,,,
 { => ,  => }
 > my $a = :%h
 h => { => ,  => }
 > $a.perl
 :h({"1" => , "3" => })
 > my %h2 = 'a','b'
 {a => b}
 > my $a = :%h,:%h2
 (h => { => ,  => } h2 => {a => b})
 > $a.perl
 :h({"1" => , "3" => })
 > $a.Str
 h        

 > $a
 h => { => ,  => }
 > $a<h2>
 Nil
 > $a<h>
 { => ,  => }
 > my $a = (:%h,:%h2)
 (h => { => ,  => } h2 => {a => b})
 > $a.WHAT
 (List)
 > $a
 (h => { => ,  => } h2 => {a => b})
 > $a.perl
 $(:h({"1" => , "3" => }), :h2({:a("b")}))
 >