在rails控制台上输出它的意思＃＆lt;在下面的例子中？：

Question

在rails控制台上输出在以下示例的哈希开头是什么意思#<？：

irb(main):003:0> a=Movie.all
Movie Load (0.5ms)  SELECT "movies".* FROM "movies" 
=> [#<Movie id: 1, title: "Aladdin", rating: "G", description: nil, release_date: "1992-11-25 00:00:00", created_at: "2013-07-27 21:29:01", updated_at: "2013-07-27 21:29:01">, #  <Movie id: 2, title: "The Terminator", rating: "R", description: nil, release_date: "1984-10- 26 00:00:00", created_at: "2013-07-27 21:29:01", updated_at: "2013-07-27 21:29:01">, #<Movie id: 3, title: "When Harry Met Sally", rating: "R", description: nil, release_date: "1989-07-21 00:00:00", created_at: "2013-07-27 21:29:01", updated_at: "2013-07-27 21:29:01">,...  more output

Answer 1

这就是如何在ruby中打印一个对象，例如，类的实例Movie将打印出类似这样的内容：

<#Movie:0x003247fa... >
    |          |
   class      memory position I think

你所拥有的是前一篇文章：

[ one_object, other_object ... ]

为了获得更好的显示效果，您可以使用hirb。

Answer 2

#<表示这是Movie类的一个实例。