哈希键值未正确检索

Question

*Editing to include the entire code

#Shell script

less file.txt | perl parseperl.pl > index.html

#This is the Perl file parseperl.pl
my @array;
while(<>)
{
($date,$name,$city) = split(",",$_,3);
%hash =(NY=>"NYC", Washington=>"Virginia", London=>"UK");
push @array, "$name, $city,$hash{$city}";
}
foreach(@array)
{
($date,$name,$city,$hash{$city}) = split(",",$_);
print "<tr>\n";
print "<td>$name</td>\n";
print "<td>$city</td>\n";
print "<td>$hash{$city}</td>\n";
}

由于某种原因，代码在输出中采用了上一个键的值

例如：这是输出

Joe NYC NY
Mary Washington NY

我的输入文件是file.txt。

12/12 12:32:56,Joe,NYC
12/12 12:12:16,Mary,Washington

请告知

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编辑

当我使用此代码时，我的代码有效

($name, $city, $state) = split (/,/,$_)