Ruby:分离多个返回值

Question

在我下面的示例中，2 和 3 作为数组返回。是否有一种快捷方式可以拆分数组中的值以分配给不同的变量，而无需手动执行 two = answers[0] 之类的操作？

def returnThreeValues
  return 1, returnTwoValues
end

def returnTwoValues
  return 2, 3
end

def shortcut
  one, two, three = returnThreeValues

  puts "one: " + one.to_s
  puts "two: " + two.to_s
  puts "three: " + three.to_s
end

shortcut()

输出:

ruby 2.5.0p0 (2017-12-25 revision 61468) [x86_64-linux]

one: 1
two: [2, 3]
three: 

Answer 1

@matthew 说的。或者这样:

def returnThreeValues
  return 1, *returnTwoValues
end