发布时间：2014-10-06 10:11:28
Consider finding the union and intersection of two unique arrays @a and @b: foreach $e (@a) { $union{$e} = 1 } foreach $e (@b) { if ( $union{$e} ) { $isect{$e} = 1 } $union{$e} = 1; } @union = keys %union; @isect = keys %isect;This would.........【阅读全文】
