Question

我有一个字符串数组。例如：

array = [ "mmaciel:x:23585:591:mmaciel:/students/mmaciel:/bin/bash\n", 
          "nhalvors:x:20943:565:nhalvors:/students/nhalvors:/bin/bash\n", 
          "orodrigu:x:28260:576:orodrigu:/students/orodrigu:/bin/bash\n" ]

我想填写班级学生：

class Student
  attr_accessor :user_name, :password, :uid, :gid,
                :gcos_field, :directory, :shell
  attr_reader :count

  def initialize(data)
    @user_name,@password,@uid,@gid,@gcos_field,@directory,@shell = data
    @@count = defined?(@@count) ? @@count += 1 : 1

  end
end

如果它只是数组的一个元素，那对我来说很简单。简单地：

data = "dputnam:x:4185:208:Douglas Vernon Putnam:/users/dputnam:/bin/bash".split(':')
s1 = Student.new(data)

但是因为我有几十个元素，所以对我来说变得复杂得多。任何帮助将不胜感激。

Answer 1

array = [ "mmaciel:x:23585:591:mmaciel:/students/mmaciel:/bin/bash\n", 
          "nhalvors:x:20943:565:nhalvors:/students/nhalvors:/bin/bash\n", 
          "orodrigu:x:28260:576:orodrigu:/students/orodrigu:/bin/bash\n" ]
students = array.map { |line| Student.new(line.chomp.split(":")) }

然后students将成为学生的集合

如何从数组中的数据创建Ruby类的实例？

1 个答案: