Ruby中txtfile中最长的单词 [英] Ruby longest word in txtfile

问题描述

我是ruby的新手，并选择了自学课程来扩展现有语言。我买了一本书，但是这些例子是如此模糊和写得很糟糕，你可以通过复制它们来完全没用。



伙计们，下面是打开文件的脚本分裂单词并对它们进行散列。然后显示每个单词出现的次数



words = File.open（'my_text.txt'）{| f | f.read} .split

freqs = Hash.new（0）

words.each {| word | freqs [word] + = 1}

freqs.sort_by {| x，y | y} .reverse.each {| w，f |放w +''+ f.to_s}



我想要实现的是找到这个txt文件中最长的单词，我似乎无法做到，有任何建议或指向正确的方向吗？



我的书中的例子：



longest = ％w {cat sheep bear} .inject do | memo，word | memo.length> word.length？备注：单词



结束



不能把哈希放到这里，尝试过多种方式，它只是抛出错误

Im new to ruby, and have chosen a self learning course for expanding on current languages. I bought a book but the examples are so vague and badly written that you can pull nothing use full from copying them.

guys, below is a script for opening a file spliting the words and hashing them. then displaying how many times each word appears

words = File.open('my_text.txt') {|f| f.read }.split
freqs=Hash.new(0)
words.each { |word| freqs[word] += 1 }
freqs.sort_by {|x,y| y }.reverse.each {|w, f| puts w+' '+f.to_s}

what im trying to achieve is finding the 'longest' word in this txt file, i just cant seem to do it, any suggestions or a point in the right direction please?

example from my book:

longest = %w{ cat sheep bear }.inject do |memo,word| memo.length > word.length ? memo : word

end

cannot put the hash into this, have tried multiple ways, it just throws errors

推荐答案

解决了：

比我想象的要明显得多，2个frikkin天让我弄清楚你可以加载文件，拆分paragrahs / words然后对它们进行排序.....

solved:
was a bit more obvious than i thought, 2 frikkin days it took me to work out that you can load the file, split the paragrahs/words and then sort them.....

longest = File.open('my_text.txt') {|f| f.read }.split.inject do |memo,word| memo.length > word.length ? memo : word
end
longest

下一期是添加一些注册表来过滤符号



问候

Next issue is to add some reg ex to filter out symbols

regards

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