运行此块时，我一直收到以下输出。它就像用户＆＃39;链接（在puts语句中显示正常）不会被转换为links_with方法中的正确链接：
https://www.reddit.com/r/aww/#content
应该链接到用户的个人资料页面（即/ username而不是#content）。
require 'mechanize'
mechanize = Mechanize.new
page = mechanize.get('https://www.reddit.com/r/aww/')
page.xpath('//*[contains(@class,"tagline")]/a[contains(@href,"user/")]/@href').each do |user|
puts user
new_page = page.link_with(user).click
puts new_page.uri
end