Question

我在这里搜索范围，但它似乎给我空白结果。

numbers = ["03","03","06","06","06","07","09","10"]

numbers.each do |n|
    result = case n
        when 1..5 then "Jan"
        when 6..10 then "Feb"
    end
    puts result
end

有任何帮助吗？感谢

Answer 1

您拥有的范围是整数范围。为此，您的输入也需要是整数：

numbers = ["03","03","06","06","06","07","09","10"]
numbers.each do |n|
    result = case n.to_i
        when 1..5 then "Jan"
        when 6..10 then "Feb"
    end
    puts result
end

您也可以将其保留为字符串并按此方式执行：

numbers = ["03","03","06","06","06","07","09","10"]
numbers.each do |n|
    result = case n
        when '01'..'05' then "Jan"
        when '06'..'10' then "Feb"
    end
    puts result
end

Ruby范围问题

1 个答案: