我正在编写一个Perl脚本来比较两个excel文件的数据。
我目前正在获取其中一个excel文件的两列,并将其存储在散列中。我用来作为键的数据是电子邮件地址,而值只是excel表中的另一个值(不重要)。我只是尝试将所有的电子邮件存储为散列键,以便我可以遍历另一个(‘删除’) excel文件,并查看该电子邮件是否存在于原始的members表中。
我的意图大致如下:
1)创建hash和lookup数组:
my %members_list;
foreach my $row (2..$MembersLastRow){
$members_list{lc($Members->Cells($row,1)->{'Value'})} = lc($Members->Cells($row,2)->{'Value'});
}
my @removals_list;
foreach my $row (2..$RemovalsLastRow)
{
push(@removals_list, lc($Removals->Cells($row,1)->{'Value'}));
}2)遍历查找数组,检查hash中是否存在:
foreach my $key (sort @removals_list)
{
print $key;
if($members_list{$key}){
print " - MATCH!";
}
print "\n";
}问题是,当我尝试运行它时,从来没有任何匹配。删除列表中的所有元素都应该存储在members_list散列中。我试着把$members_list{$key}打印到屏幕上,然后它出现了一个"Uninitialized use of“诸如此类的东西。
我已经为此斗争了几天了,任何帮助都是非常感谢的。
这就是我使用的整个代码页面!
use strict;
use 5.010;
use Win32::OLE qw(in with);
use Win32::OLE::Const 'Microsoft Excel';
$Win32::OLE::Warn = 3; # die on errors...
# get already active Excel application or open new
my $Excel = Win32::OLE->GetActiveObject('Excel.Application')
|| Win32::OLE->new('Excel.Application', 'Quit');
$Excel->{DisplayAlerts}=0;
# open Excel file
my $Book = $Excel->Workbooks->Open("**FILENAME1**");
my $Book2 = $Excel->Workbooks->Open("**FILENAME2**");
# You can dynamically obtain the number of worksheets, rows, and columns
# through the Excel OLE interface. Excel's Visual Basic Editor has more
# information on the Excel OLE interface. Here we just use the first
# worksheet, rows 1 through 4 and columns 1 through 3.
my $Members = $Book->Worksheets(1);
$Members->{Name} = "Members - Points";
my $Results = $Book->Worksheets(2);
$Results->{Name} = "Perl Results -Saved";
my $Removals = $Book2->Worksheets(1);
$Removals->{Name} = "Removals";
my $count=0;
my %members_list;
my @removals_list;
my $MembersLastRow = &findLastRow($Members);
print "After Members Last Row\n";
my $RemovalsLastRow = &findLastRow($Removals);
print "After Removals Last Row\n";
foreach my $row (2..$MembersLastRow)
{
next unless defined $Members->Cells($row,1)->{'Value'};
$members_list{lc($Members->Cells($row,1)->{'Value'})} = lc($Members->Cells($row,2)->{'Value'});
}
foreach my $row (2..$RemovalsLastRow)
{
next unless defined $Removals->Cells($row,1)->{'Value'};
push(@removals_list, lc($Removals->Cells($row,1)->{'Value'}));
}
#DO THE VLOOKUP
my $matches=1;
print "Now doing comparisons......\n";
$Results->Cells($matches,1)->{'Value'} = "Removal List";
$Results->Cells($matches,2)->{'Value'} = "Corresponding Member List";
foreach my $key (sort @removals_list)
{
print $key;
if($members_list{$key}){
print " - MATCH!";
}
print "\n";
}
print "\nComparisons Complete.\n";
sub findLastRow
{
$_[0]->UsedRange->Find({What=>"*",
SearchDirection=>xlPrevious,
SearchOrder=>xlByRows})->{Row};
}
sub findLastCol
{
$_[0]->UsedRange->Find({What=>"*",
SearchDirection=>xlPrevious,
SearchOrder=>xlByColumns})->{Column};
}
$Book->Save();发布于 2011-05-18 02:53:03
如果您要存储的值可能是undef,则需要执行以下操作:
if ( exists $members_list{$key} ) {您确定您正在访问相同的%members_list哈希吗?它没有超出范围,也没有被后来的my %members_list取代
这说明了什么:
use Data::Dumper;
$Data::Dumper::Terse = $Data::Dumper::Useqq = 1;
print Data::Dumper::Dumper( { 'removals' => [ sort @removals_list ], 'members' => [ sort keys %members_list ] } );https://stackoverflow.com/questions/6035588
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