#!/usr/bin/perl -w# prints dir list of .jpg filenames to screen# and adds HTML markup for flexboxuse strict;use warnings;use Text::Autoformat;my $file;my $nfilename;my $first = '<img src="';my $last = '" style="width:100%"> ';my $title = 'title = "';my $estr = '">';my $dir = "/home/clair/cp-perl/";my $mylist;opendir(DIR, $dir) or die $!;while ($file = readdir(DIR)) {# Use a regular expression to ignore files beginning with a periodnext if ($file =~ m/^\./);next if (substr $file, -1) ne "g";#***************************************# get rid of extension and replace hyphen with space $nfilename=$file;$nfilename=~s/.jpg//;$nfilename =~ s/-/ /g;# ****************************************#capitalizewords in filename to be a titlemy $formatted = autoformat $nfilename, { case => 'highlight' };chomp($nfilename);# ****************************************$mylist = join("",$first, $file, $last, $title, $nfilename, $estr);# ************************* # thanks to George Mavridis - stackoverflow$mylist =~ s/[\r\n]+//;$mylist .="\n";# *************************print $mylist;}closedir(DIR);exit 0;這是我現(xiàn)在得到的前 3 行輸出：<pre><img src="out-of-the-night.jpg" style="width:100%"> title = "Out of the Night"><img src="homage-to-borgeson.jpg" style="width:100%"> title = "Homage to Borgeson"><img src="autumn-in-vermont.jpg" style="width:100%"> title = "Autumn in Vermont</pre>前兩個(gè)字符應(yīng)該位于行的末尾，如下所示：<pre><img src="out-of-the-night-sm.jpg" style="width:100%"> title = "Out of the Night"><img src="homage-to-borgeson.jpg" style="width:100%"> title = "Homage to Borgeson"><img src="autumn-in-vermont-sm.jpg" style="width:100%"> title = "Autumn in Vermont"></pre>這是連接線：$mylist = join("",$first, $file, $last, $title, $nfilename, $estr);print $mylist;這是 $estr 聲明： my $estr = '">'; 我已經(jīng)嘗試了無數(shù)版本——這只是當(dāng)前的一個(gè)。我想知道如何使這兩個(gè)字符顯示在行的末尾而不是下一行的開頭。我在這件事上花了幾個(gè)小時(shí)，前天還花了兩個(gè)小時(shí)試圖讓論壇接受我的問題。
3 回答
縹緲止盈
TA貢獻(xiàn)2041條經(jīng)驗(yàn) 獲得超4個(gè)贊
中的字符串$nfilename顯然以換行符結(jié)尾。您是否從文件中讀取了一行并保留了換行符？chomp可用于從變量中刪除尾隨換行符。
莫回?zé)o
TA貢獻(xiàn)1865條經(jīng)驗(yàn) 獲得超7個(gè)贊
有數(shù)百種方法可以解決這個(gè)問題，其中之一是：
您的示例中的 $mylist （打印之前）包含：
<img src="out-of-the-night.jpg" style="width:100%"> title = "Out of the Night ">
刪除中間的換行符，并將其添加到字符串的末尾
$mylist =~ s/[\r\n]+//; $mylist .="\n";
會(huì)解決這個(gè)問題。
順便說一句： $last 末尾的 '> "' 似乎也是錯(cuò)誤的。
吃雞游戲
TA貢獻(xiàn)1829條經(jīng)驗(yàn) 獲得超7個(gè)贊
請(qǐng)看看您是否發(fā)現(xiàn)以下代碼有用。
它在本地目錄中查找 JPG 文件并生成網(wǎng)頁
use strict;
use warnings;
use feature 'say';
my $dir = '.';
my @files;
push @files, $_ while glob('*.jpg');
my $title = 'Pictures in JPEG format';
my $space = "\n\t\t\t";
my $style = 'width:100%';
my $html = '
<html>
<head>
<title>$title</title>
</head>
<body>';
for (@files) {
/(.*?)\.jpg/;
my $title = $1;
$title =~ s/[-_]/ /g;
$html .= "$space title = \"\u$title\"";
$html .= "$space<img src=\"$_\" style=\"$style\">";
}
$html .= '
</body>
</html>';
say $html;
輸出
<html>
<head>
<title>Pictures in JPEG format</title>
</head>
<body>
title = "File 08"
<img src="file-08.jpg" style="width:100%">
title = "File 09"
<img src="file-09.jpg" style="width:100%">
title = "File 01"
<img src="file_01.jpg" style="width:100%">
title = "File 02"
<img src="file_02.jpg" style="width:100%">
title = "File 03"
<img src="file_03.jpg" style="width:100%">
</body>
</html>
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