Question

我已经从文本文件中创建了一个英文单词及其值的哈希表，方法是将每行中的第一个单词解析为要定义的单词，并使用以下代码解释所有单词，但第一个单词作为定义：< / p>

words = Hash.new
File.open("path/dictionary.txt") do|file|
  file.each do |line|
    n = line.split.size
definition = line.strip[/(?<=\s).*/]
    words[line.strip.split[0...1]] = definition
  end
end

但是，当我尝试使用如下代码打印值时：

p words["Definition"]

打印＆＃39; nil＆＃39;。我仍然可以使用＆＃39; p＆＃39;来打印整个哈希表。所以我不明白有任何想法吗？感谢

编辑：这是dictionary.txt的开头，让您了解我在做什么：

A-  prefix (also an- before a vowel sound) not, without (amoral). [greek]

Aa  abbr. 1 automobile association. 2 alcoholics anonymous. 3 anti-aircraft.

Aardvark  n. Mammal with a tubular snout and a long tongue, feeding on termites. [afrikaans]

Ab-  prefix off, away, from (abduct). [latin]

Aback  adv.  take aback surprise, disconcert. [old english: related to *a2]

Abacus  n. (pl. -cuses) 1 frame with wires along which beads are slid for calculating. 2 archit. Flat slab on top of a capital. [latin from greek from hebrew]

Abaft  naut. —adv. In the stern half of a ship. —prep. Nearer the stern than. [from *a2, -baft: see *aft]

Abandon  —v. 1 give up. 2 forsake, desert. 3 (often foll. By to; often refl.) Yield to a passion, another's control, etc. —n. Freedom from inhibitions.  abandonment n. [french: related to *ad-, *ban]

Abandoned  adj. 1 deserted, forsaken. 2 unrestrained, profligate.

Abase  v. (-sing) (also refl.) Humiliate, degrade.  abasement n. [french: related to *ad-, *base2]

Abashed  predic. Adj. Embarrassed, disconcerted. [french es- *ex-1, baïr astound]

Abate  v. (-ting) make or become less strong etc.; diminish.  abatement n. [french abatre from latin batt(u)o beat]

Abattoir  n. Slaughterhouse. [french abatre fell, as *abate]

Abbacy  n. (pl. -ies) office or jurisdiction of an abbot or abbess. [latin: related to *abbot]

Abbé  n. (in france) abbot or priest. [french from latin: related to *abbot]

Abbess  n. Head of a community of nuns.

Abbey  n. (pl. -s) 1 building(s) occupied by a community of monks or nuns. 2 the community itself. 3 building that was once an abbey.

Answer 1

由于你没有发布文字，很难说你想要什么，但我想这就是你想要的：

words = {}
File.foreach("path/dictionary.txt") do |line|
  words.store(*line.strip.split(/\s+/, 2))
end

如果文字中有空行，

words = {}
File.foreach("path/dictionary.txt") do |line|
  words.store(*line.strip.split(/\s+/, 2)) if line =~ /\S/
end

Answer 2

看起来哈希中的键是包含一个元素的数组。

更改为

words[line.strip.split[0...1][0]]=definition

无法在Ruby中打印哈希表值

2 个答案: