计算Ruby中每个句子的字数

如果你有一堆句子（一段或两段），你如何计算每个句子的字数

输出：

Sentence 1 has 2 words
Sentence 2 has 5 words

---

第二行应该说2个字，而不是5个字。有什么想法吗？是的，两个循环。也许有更好的方法可以做到这一点，但这就是我对程序的理解。

在每个句子后将

字数重置为0

string = "hello world.  Hello world."

#I first split sentences into an element like so, first maybe initialized variables to count sentence, then words within the sentence
sentencecount = 0
wordcount = 0

string.split(".").each do |sentence|
  wordcount = 0
  sentencecount += 1                     #track number of sentences
  sentence.split(/\w+/).each do |word|
    wordcount += 1                       #to track number of words
  end

  puts "Sentence #{sentencecount} has #{wordcount} words."

end

每句话后将
wordcount
重置为0

string = "hello world.  Hello world."

#I first split sentences into an element like so, first maybe initialized variables to count sentence, then words within the sentence
sentencecount = 0
wordcount = 0

string.split(".").each do |sentence|
  wordcount = 0
  sentencecount += 1                     #track number of sentences
  sentence.split(/\w+/).each do |word|
    wordcount += 1                       #to track number of words
  end

  puts "Sentence #{sentencecount} has #{wordcount} words."

end

只需使用空格字符调用
split
，即可计算单词数：

string = "hello world.  Hello world."

string.split(".").each_with_index do |sentence,index|
  puts "Sentence #{index+1} has #{sentence.split(" ").count} words."
end

# => Sentence 1 has 2 words.
# => Sentence 2 has 2 words.

只需使用空格字符调用
split
，即可计算单词数：

string = "hello world.  Hello world."

string.split(".").each_with_index do |sentence,index|
  puts "Sentence #{index+1} has #{sentence.split(" ").count} words."
end

# => Sentence 1 has 2 words.
# => Sentence 2 has 2 words.

使用
put..
打印结果后，您必须将
wordcount
重置为
0
。顺便问一下，这是一个什么方法的
句子。（/\W+/）
？句子。拆分（/\W+/）类型在使用
put..
打印结果后，您必须将
wordcount
重置为
0
。顺便问一下，这是一个什么方法的
句子。（/\W+/）
？句子。拆分（/\W+/）你知道第二行为什么第2行有3个单词。因为W匹配非单词字符。使用W代替。我会更新答案。为什么知道第二行输出的句子2有3个单词。因为\w匹配非单词字符。使用w代替。我将更新答案。考虑<代码>分裂（/[！！？]）<>代码>考虑<代码>拆分（/[！！]）/代码>。