我现在使用YAML来存储数据,它可以创建和存储文件。我仍在尝试如何使用文本表gem以正确的格式将表打印到终端。这是代码:
def highscore
if File.exists?('highscore.txt')
hs = YAML.load_file("highscore.txt")
else
hs = {
1 => { player: '', score: 0, date: '' },
2 => { player: '', score: 0, date: '' },
3 => { player: '', score: 0, date: '' },
4 => { player: '', score: 0, date: '' },
5 => { player: '', score: 0, date: '' },
6 => { player: '', score: 0, date: '' },
7 => { player: '', score: 0, date: '' },
8 => { player: '', score: 0, date: '' },
9 => { player: '', score: 0, date: '' },
10 => { player: '', score: 0, date: '' },
}
end
(1..10).each do |rank|
t = Time.now
if @grand_total > hs[rank][:score]
hs[rank][:score] = @grand_total
hs[rank][:date] = "#{t.month}/#{t.day}/#{t.year}"
puts "Congratulations you set a new HIGH SCORE! Enter your initials."
initials = gets.chomp.upcase
hs[rank][:player] = initials
break
else
puts "Sorry, you didn't get a high score. Try again!"
end
end
File.write('highscore.txt', hs.to_yaml)
puts hs.to_table
end
我建议您考虑使用YAML数据序列化程序。它创建了一个格式良好、可读性强的文件,其他语言可以轻松读取。
require 'pp'
require 'yaml'
hs = [["RANK", "PLAYER", "SCORE", "DATE"],
["1st", "-", 0, "-"],
["2nd", "-", 0, "-"],
["3rd", "-", 0, "-"],
["4th", "-", 0, "-"],
["5th", "-", 0, "-"],
["6th", "-", 0, "-"],
["7th", "-", 0, "-"],
["8th", "-", 0, "-"],
["9th", "-", 0, "-"],
["10th", "-", 0, "-"]]
puts hs.to_yaml
看起来像:
---
- - RANK
- PLAYER
- SCORE
- DATE
- - 1st
- '-'
- 0
- '-'
- - 2nd
- '-'
- 0
- '-'
- - 3rd
- '-'
- 0
- '-'
- - 4th
- '-'
- 0
- '-'
- - 5th
- '-'
- 0
- '-'
- - 6th
- '-'
- 0
- '-'
- - 7th
- '-'
- 0
- '-'
- - 8th
- '-'
- 0
- '-'
- - 9th
- '-'
- 0
- '-'
- - 10th
- '-'
- 0
- '-'
保存到文件很容易:
File.write('path/to/file.yaml', hs.to_yaml)
读回来也很容易:
hs = YAML.load_file('path/to/file.yaml')
阅读"Yaml Cookbook",了解Ruby和Yaml结构之间的关系。
也就是说,我会为你的高分表推荐一个不同的数据结构。与其使用数组数组(访问起来很麻烦),不如使用哈希散列:
hs = {
1 => { player: '', score: 0, date: '' },
2 => { player: '', score: 0, date: '' },
3 => { player: '', score: 0, date: '' },
4 => { player: '', score: 0, date: '' },
5 => { player: '', score: 0, date: '' },
6 => { player: '', score: 0, date: '' },
7 => { player: '', score: 0, date: '' },
8 => { player: '', score: 0, date: '' },
9 => { player: '', score: 0, date: '' },
10 => { player: '', score: 0, date: '' },
}
这将使YAML文件更容易理解:
---
1:
:player: ''
:score: 0
:date: ''
2:
:player: ''
:score: 0
:date: ''
3:
:player: ''
:score: 0
:date: ''
4:
:player: ''
:score: 0
:date: ''
5:
:player: ''
:score: 0
:date: ''
6:
:player: ''
:score: 0
:date: ''
7:
:player: ''
:score: 0
:date: ''
8:
:player: ''
:score: 0
:date: ''
9:
:player: ''
:score: 0
:date: ''
10:
:player: ''
:score: 0
:date: ''
并将简化对代码中表的访问。
一般来说,您的代码需要进行大的清理。编写代码的一个非常强的原则是"DRY",也就是"不要重复自己"。你的代码中有大量的冗余,可以大大简化。这需要在单独的问题中处理,但是,基本上,您的分数处理代码可以简化为case
语句和在哈希中存储值的方法。