Question

2 同上。

h1 = { "s1" => "2009-7-27", "s2" => "2010-3-6", "s3" => "2009-7-27" }

h2 = { "s1" => "12:29:15", "s2" => "10:00:17", "s3" => "12:25:52" }

我想把这两条 has合为一:

h = { "s1" => "2009-7-27 12:29:15",
      "s2" => "2010-3-6 10:00:17", 
      "s3" => "2009-7-27 2:25:52" }

这样做的最佳方式是什么? 感谢!

Answer 1

h = h1.merge(h2){|key, first, second| first + " " + second }

如果你的钥匙相同,它将发挥作用。在你的法典中,它们是t(“s1”诉“s1=”)。他们是否应当成为同样的钥匙?

Answer 2

意指:

Hash[h1.map{|k,v| [k, "#{v} #{h2[k]}"]}]

 => {"s3"=>"2009-7-27 12:25:52", "s1"=>"2009-7-27 12:29:15", "s2"=>"2010-3-6 10:00:17"}

请注意斜线不定,如果你想要订购的洗衣机,你很可能需要看。