perl引用哈希与两个相似的单词并非全部计数

I am writing a Perl project and am facing the problem as followed: I have a large input file which has a comment file and a revenue field. The comment field could have DTN or Cluster Master DTN and both would have revenue of 300 to be counted into their own category. The following is part of the code:I am writing a Perl project and am facing the p