ruby - 如何从此四方哈希中获取键 => 值？

Question

这是它的样子:

{
  "groups" => [
    { "venues" => [
      { "city"     => "Madrid",
        "address"  => "Camino de Perales, s/n",
        "name"     => "Caja Mágica",
        "stats"    => {"herenow"=>"0"},
        "geolong"  => -3.6894333,
        "primarycategory" => {
          "iconurl"      => "http://foursquare.com/img/categories/arts_entertainment/stadium.png",
          "fullpathname" => "Arts & Entertainment:Stadium",
          "nodename"     => "Stadium",
          "id"           => 78989 },
        "geolat"   => 40.375045,
        "id"       => 2492239,
        "distance" => 0,
        "state"    => "Spain" }],
      "type"   => "Matching Places"}]
}

又大又丑。。。我只想把id抢出来。我该怎么做呢？

Answer 1

h = { "组"=> ......... }

这两个id是:

h["groups"][0]["venues"][0]["primarycategory"]["id"]
h["groups"][0]["venues"][0]["id"]