使用 Perl 制作日历86

简介

Perl 是一款强大的编程语言，可以用于解决各种任务，包括创建日历。通过使用 Perl 的丰富的日期和时间操作功能，您可以轻松地生成各种日历格式，从简单的文本日历到复杂的 HTML 日历。

安装和模块

在开始之前，确保您的系统已安装 Perl。要创建日历，您需要安装 DateTime 模块：```
cpan install DateTime
```

生成文本日历

要生成文本日历，请使用以下脚本：```perl
#!/usr/bin/perl
use DateTime;
use DateTime::Format::Strftime;
my $date = DateTime->new(
year => 2023,
month => 1,
day => 15,
);
my $month_name = $date->strftime('%B');
my $year = $date->strftime('%Y');
print "日历 - $month_name $year";
print "_____________________";
print "日一二三四五六";
my $day_of_week = $date->strftime('%w');
my $start_offset = $day_of_week - 1;
# 输出前导空格
print (' ' x $start_offset);
# 循环遍历日期
while ($date->month() == $date->strftime('%B')) {
my $day_num = $date->strftime('%d');
# 每周新一行
if ($date->strftime('%w') == 1) {
print "";
}
# 输出日号
printf "%2d ", $day_num;
# 下一天
$date->add(days => 1);
}
print "";
```

生成 HTML 日历

要生成 HTML 日历，请使用以下脚本：```perl
#!/usr/bin/perl
use DateTime;
use DateTime::Format::Strftime;
my $date = DateTime->new(
year => 2023,
month => 1,
day => 15,
);
my $month_name = $date->strftime('%B');
my $year = $date->strftime('%Y');
print "";
print "日历 - $month_name $year";
print "";
print "日一二三四五六";
print "";
my $day_of_week = $date->strftime('%w');
my $start_offset = $day_of_week - 1;
# 输出前导空格
print "";
for (my $i = 0; $i < $start_offset; $i++) {
print " ";
}
# 循环遍历日期
while ($date->month() == $date->strftime('%B')) {
my $day_num = $date->strftime('%d');
# 每周新一行
if ($date->strftime('%w') == 1) {
print "";
}
# 输出日号
print "$day_num";
# 下一天
$date->add(days => 1);
}
# 输出尾随空格
if ($date->strftime('%w') != 1) {
for (my $i = $date->strftime('%w'); $i < 7; $i++) {
print " ";
}
}
print "";
print "";
```