当我运行脚本时,我遇到了问题,它在chart_column.pl 第33行通过包“Spreadsheet::WriteExcel”找不到对象方法“add_chart”之类的错误。我可以知道这里有什么问题吗?我正在使用为 x86_64-linux 构建的 perl,v5.8.5。#!/usr/bin/perl -w
###############################################################################
#
# A simple demo of Column charts in Spreadsheet::WriteExcel.
#
# reverse('©'), December 2009, John McNamara, jmcnamara@cpan.org
#
use strict;
use Spreadsheet::WriteExcel;
my $workbook = Spreadsheet::WriteExcel->new( 'chart_column.xls' );
my $worksheet = $workbook->add_worksheet();
my $bold = $workbook->add_format( bold => 1 );
# Add the worksheet data that the charts will refer to.
my $headings = [ 'Category', 'Values 1', 'Values 2' ];
my $data = [
[ 2, 3, 4, 5, 6, 7 ],
[ 1, 4, 5, 2, 1, 5 ],
[ 3, 6, 7, 5, 4, 3 ],
];
$worksheet->write( 'A1', $headings, $bold );
$worksheet->write( 'A2', $data );
###############################################################################
#
# Example 1. A minimal chart.
#
my $chart1 = $workbook->add_chart( type => 'column' );
# Add values only. Use the default categories.
$chart1->add_series( values => '=Sheet1!$B$2:$B$7' );
# Insert the chart into the main worksheet.
$worksheet->insert_chart( 'E2', $chart1 );