0

在我的代码中,我想以表格形式查看 CSV 中的所有数据,但它只显示最后一行。1号线和2号线呢?这是数据:

1,HF6,08-Oct-08,34:22:13,df,jhj,fh,fh,ffgh,gh,g,rt,ffgsaf,asdf,dd,yoawa,DWP,tester,Pattern
2,hf35,08-Oct-08,34:12:13,dg,jh,fh,fgh,fgh,gh,gfh,re,fsaf,asdf,dd,yokogawa,DWP,DWP,Pattern
3,hf35,08-Oct-08,31:22:03,dg,jh,fh,fgh,gh,gh,gh,rte,ffgsaf,asdf,dfffd,yokogawa,DWP,DWP,ghh

这是代码:

#! /usr/bin/perl
print "Content-type:text/html\r\n\r\n";
use CGI qw(:standard);
use strict;
use warnings;

my $line;
my $file;
my ($f1,$f2,$f3,$f4,$f5,$f6,$f7,$f8,$f9,$f10,$f11,$f12,$f13,$f14,$f15,$f16,$f17,$f18,$f19);

$file='MyFile.txt';
open(F,$file)||die("Could not open $file");
while ($line=<F>)
{

($f1,$f2,$f3,$f4,$f5,$f6,$f7,$f8,$f9,$f10,$f11,$f12,$f13,$f14,$f15,$f16,$f17,$f18,$f19)= split ',',$line;

}

close(F);

print "<HTML>";
print "<head>";
print "<body bgcolor='#4682B4'>";
print "<title>FUSION SHIFT REPORT</title>";
print "<div align='left'>";
print "<TABLE CELLPADDING='1' CELLSPACING='1' BORDER='1' bordercolor=black width='100%'>";
print "<TR>";
print "<td width='12%'bgcolor='#00ff00'><font size='2'>RECORD No.</td>";
print "<td width='12%'bgcolor='#00ff00'><font size='2'>TESTER No.</td>";
print "<td width='12%'bgcolor='#00ff00'><font size='2'>DATE</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>TIME</td>";
print "<td width='11%'bgcolor='#00ff00'><font size='2'>DEVICE NAME</td>";
print "<td bgcolor='#00ff00'><font size='2'>TEST PROGRAM</td>";
print "<td bgcolor='#00ff00'><font size='2'>DEVICE FAMILY</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>SMSLOT</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>DIE LOT</td>";
print "<td width='12%'bgcolor='#00ff00'><font size='2'>LOADBOARD</td>";
print "<td width='12%'bgcolor='#00ff00'><font size='2'>TESTER </td>";
print "<td width='12%'bgcolor='#00ff00'><font size='2'>SERIAL NUMBER</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>TESTER CONFIG</td>";
print "<td width='11%'bgcolor='#00ff00'><font size='2'>SMSLOT</td>";
print "<td bgcolor='#00ff00'><font size='2'>PACKAGE</td>";
print "<td bgcolor='#00ff00'><font size='2'>SOCKET</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>ROOT CAUSE 1</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>ROOT CAUSE 2</td>";
print "<td width='13%'bgcolor='#00ff00'><font size='2'>ROOT CAUSE 3</td>";
print "</tr>";
print "<TR>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f1</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f2</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f3</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f4</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f5</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f6</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f7</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f8</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f9</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f10</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f11</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f12</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f13</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f14</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f15</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f16</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f17</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f18</TD>";
print "<TD bgcolor='#ADD8E6'><font size='2'>$f19</TD>";
print "</tr>";

print "</TABLE>";

print "</body>";
print "<html>";
4

7 回答 7

14

您需要在 while 循环输出表格行,因为那是您读取行的地方。

所以更改代码,使其

  • 输出表头
  • 逐行读取文件输出表行
  • 输出表格页脚

如果稍微简化一下,这就是您的循环的外观...

while ($line=<F>)
{  
    print "<tr>";
    my @cells= split ',',$line;
    foreach my $cell (@cells)
    {
       print "<td>$cell</td>";
    }
    print "</tr>";
}
于 2008-10-14T06:30:25.963 回答
7

HTML::Template 会让你的生活更轻松。这是我使用精简模板的方法。

#!/usr/local/bin/perl

use strict;
use warnings;

use HTML::Template;

my @table;
while (my $line = <DATA>){
    chomp $line;
    my @row = map{{cell => $_}} split(/,/, $line);
    push @table, {row => \@row};
}

my $tmpl = HTML::Template->new(scalarref => \get_tmpl());
$tmpl->param(table => \@table);
print $tmpl->output;

sub get_tmpl{
    return <<TMPL
<html>
<TMPL_LOOP table>
<tr>
<TMPL_LOOP row>
<td><TMPL_VAR cell></td></TMPL_LOOP>
</tr></TMPL_LOOP>
</html>
TMPL
}

__DATA__
1,HF6,08-Oct-08,34:22:13,df,jhj,fh,fh,ffgh,gh,g,rt,ffgsaf,asdf,dd,yoawa,DWP,tester,Pattern
2,hf35,08-Oct-08,34:12:13,dg,jh,fh,fgh,fgh,gh,gfh,re,fsaf,asdf,dd,yokogawa,DWP,DWP,Pattern
3,hf35,08-Oct-08,31:22:03,dg,jh,fh,fgh,gh,gh,gh,rte,ffgsaf,asdf,dfffd,yokogawa,DWP,DWP,ghh
于 2008-10-14T15:58:48.937 回答
6
$f1,$f2,$f3,$f4

任何时候你看到这样的代码都应该响起警钟。使用数组。

于 2008-10-15T01:39:48.513 回答
5

请允许我用一个更小的例子来演示。

my $f;
while ($line = <F>) {
    $f = $line;
}
print $f;

上面的代码将读取文件 F 的每一行,并将每一行分配给变量$f。每次它分配一个新行时,前一行都会被覆盖。当它到达文件末尾时,它会打印出$f一次的值。

my $f;
while ($line = <F>) {
    $f = $line;
    print $f;
}

上面的代码有print内部循环,因此print将针对输入的每一行运行。您将需要对您的代码进行类似的修改以获得您期望的输出。

于 2008-10-14T06:28:50.787 回答
3

您只看到最后一行的原因是您在读取整个文件后运行打印并在读取下一行时丢弃每一行。

老实说,该代码存在各种问题。我将提到几个并在下面的代码片段中解决这些问题。

  1. 不要自己解析 CSV 数据(拆分)。使用Text::CSV或 -- 如果您需要更好的性能 -- Text::CSV_XS
  2. 您的 HTML 无效。您不会关闭所有标签,特别是标题应该在头部,而不是正文。
  3. 您应该使用模板模块将表格数据插入网页。示例:HTML::TemplateTemplate Toolkit
  4. 至少,使用函数来抽象出冗余代码。
  5. 更好的是,使用数据的格式也是数据的事实。这就是为什么它应该被这样对待。
  6. 如果你发现你声明了很多带有数字的变量($f1, $f2,...),你真的想要一个数组:@fields = split /,/, $line;

use strict;
use warnings;
use CGI qw();
use Text::CSV;

my $cgi = CGI->new();
print $cgi->header();

my $file ='MyFile.txt';

# should really use a templating module from CPAN,
# but let's take it step by step.
# Any of the following would fit nicely:
# - Template.pm (Template Toolkit)
# - HTML::Template, etc.
my $startHtml = <<'HERE';
<html>
<head> <title>FUSION SHIFT REPORT</title> </head>
<body bgcolor="#4682B4">
<div align="left">
<table cellpadding="1" cellspacing="1" border="1" bordercolor="black" width="100%">
HERE
my $endHtml = <<'HERE';

</table>

</body>
<html>
HERE

my @columns = (
  { name => 'RECORD No.', width => 12 },
  { name => 'TESTER No.', width => 12 },
  { name => 'DATE', width => 12 },
  { name => 'TIME', width => 13 },
  { name => 'DEVICE NAME', width => 11 },
  { name => 'TEST PROGRAM' },
  { name => 'DEVICE FAMILY' },
  { name => 'SMSLOT', width => 13 },
  { name => 'DIE LOT', width => 13 },
  { name => 'LOADBOARD', width => 12 },
  { name => 'TESTER', width => 12 },
  { name => 'SERIAL NUMBER', width => 12 },
  { name => 'TESTER CONFIG', width => 13 },
  { name => 'SMSLOT', width => 11 },
  { name => 'PACKAGE' },
  { name => 'SOCKET' },
  { name => 'ROOT CAUSE 1', width => 13 },
  { name => 'ROOT CAUSE 2', width => 13 },
  { name => 'ROOT CAUSE 3', width => 13 },
);


my $csv = Text::CSV->new();
open my $fh, '<', $file
  or die "Could not open file '$file': $!"; # should generate a HTML error here

# print header
print $startHtml;
print_table_header(\@columns);

while (defined(my $line = <$fh>)) {
  $csv->parse($line);
  # watch out: This may be "tainted" data!
  my @fields = $csv->fields();
  @fields = @fields[0..$#columns] if @fields > @columns;
  print_table_line(\@fields);
}

close $fh;

print $endHtml;




sub print_table_header {
  my $columns = shift;
  print "<tr>\n";
  foreach my $column (@$columns) {
    my $widthStr = (defined($column->{width}) ? ' width="'.$column->{width}.'"' : '');
    my $colName = $column->{name};
    print qq{<td$widthStr bgcolor="#00FF00"><font size="2">$colName</font></td>\n};
  }
  print "</tr>\n";
}

sub print_table_line {
  my $fields = shift;
  print "<tr>\n";
  foreach my $field (@$fields) {
    print qq{<td bgcolor=\"#ADD8E6\"><font size="2">$field</font></td>\n};
  }
  print "</tr>\n";
}
于 2008-10-14T15:54:51.800 回答
0

请关闭您的 <font> 标签。仅仅因为浏览器会处理它们的缺失并不意味着它们没有价值。

于 2008-10-14T22:39:57.190 回答
0

这不是最强大的解决方案,事实上,如果您的值中有逗号,则会出现一些非常讨厌的失败,但它为我完成了这项工作:

(CSV 数据位于名为 $content 的变量中)

$content =~ s#\n#</td></tr><tr><td>#g;
$content =~ s#,#</td><td>#g;
$content = "<table><tr><td>$content</td></tr></table>";
于 2013-05-28T14:44:15.937 回答