尝试在 ruby 中搜索字符串以获取输入

发布于 2024-12-10 06:13:46 字数 707 浏览 0 评论 0原文

我在使用 gets 搜索用户输入的字符串时遇到问题。概要如下：

puts "What are we searching for?"
search = gets
z=1
result = []
file = File.open('somefile.txt', 'r+')

file.each do |line| 
  if line.include?(search)
    result << z
  end
  puts line
  z+=1
end

puts "Found on line(s) #{result}

问题似乎出在 if line.include?(search) 上。当我将 (search) 替换为我正在搜索的值时（例如 ("example01")），此脚本可以正常工作。但是当使用用户输入的值时——使用gets，它似乎永远找不到它。 ("#{search}") 也不起作用。

我还尝试通过交换

if line.include?(search)

来

if line =~ Regexp.new(search)

使用正则表达式来解决相同的问题。

这是怎么回事？提前致谢。

原文

I am having issues searching for a string input by the user using gets. Here's the outline:

puts "What are we searching for?"
search = gets
z=1
result = []
file = File.open('somefile.txt', 'r+')

file.each do |line| 
  if line.include?(search)
    result << z
  end
  puts line
  z+=1
end

puts "Found on line(s) #{result}

The issue seems to be with if line.include?(search). When I replace (search) with the value I am searching for--such as ("example01")-- this script works fine. But when using the value input by the user--using gets, it never seems to find it. ("#{search}") doesn't work either.

I have also tried using regular expressions by swapping