Question

我有以下内容：

  department = data.css('#ref_2619534011')

  @department_hash = Hash.new {|h,k| h[k]=[]}
  department.css('.narrowValue').each do | department |
    @department_hash["department"] << department.text
  end

输出如下内容：

{"department"=>["15,721", "243,247", "510,260", "46,007", "14,106", "358", "5,787", "19,808"]}

现在我要抓住那些总数的标题

 department.css('.refinementLink').each do

其中输出的内容如下：

{"department"=>["Bird", "Cats", etc ]}

我想混合两者来产生这样的嵌套哈希：

{departments: { "Pet Supplies": [ "Birds" : 15,721, "Cats" : 243,247, etc ] }}

如何做到这一点？

修改

我尝试了这个但是没有用：

 @department_hash = Hash.new {|h,k| h[k]=[]}
  department.css('li').each do | department |
    department_title = department.css('.refinementLink').text
    department_count = department.css('.narrowValue').text[/[\d,]+/]
  end 

  @department_hash["department"] = Hash[department_title.zip(department_count)]

Answer 1

您可以使用Array#zip组合两个数组：

numbers = ["15,721", "243,247"]
animals = ["Birds", "Cats"]

Hash[animals.zip(numbers)]
#=> {"Birds"=>"15,721", "Cats"=>"243,247"}

关于您的修改：

由于您已经安装了department_title和department_count，因此循环内的此类内容应该有效：

@department_hash = {}
department.css('li').each do |department|
  department_title = ...
  department_count = ...
  @department_hash["department"] ||= {}   # ensure empty hash
  @department_hash["department"][department_title] = department_count
end

刮取信息并在密钥中显示=＆gt;在嵌套哈希中重视时尚？

1 个答案: