如何在输出中进行换行

如何\n在输出中实际起作用？目前，它只是将其全部写入一个长块中。谢谢你的帮助

Dir.chdir 'C:/Users/name/Music'
music = Dir['C:/Users/name/Music/*.{mp3, MP3}']
puts 'what would you like to call the playlist?'
@new = ''
playlist_name = gets.chomp + '.m3u'

music.each do |z|
  @new += z + '\n'
end

File.open playlist_name, 'w' do |f|
  f.write @new
end

使用"\n"代替'\n'

您可以在File.open块中完成所有这些操作：

Dir.chdir 'C:/Users/name/Music'
music = Dir['C:/Users/name/Music/*.{mp3, MP3}']
puts 'what would you like to call the playlist?'
playlist_name = gets.chomp + '.m3u'

File.open playlist_name, 'w' do |f|
  music.each do |z|
    f.puts z
  end
end

我想与\n
我分享自己的经验，发现“ \ n”的工作方式如下：

puts "\n\n" // to provide 2 new lines

但不是

p "\n\n"

也把'\n\n'
不起作用。

希望能为您服务！

实际上，您甚至不需要该块：

  Dir.chdir 'C:/Users/name/Music'
  music = Dir['C:/Users/name/Music/*.{mp3, MP3}']
  puts 'what would you like to call the playlist?'
  playlist_name = gets.chomp + '.m3u'

  File.open(playlist_name, 'w').puts(music)