如何在 Ruby 中拆分分隔字符串并将其转换为数组? [英] How to split a delimited string in Ruby and convert it to an array?

问题描述

我有一个字符串

"1,2,3,4"

我想把它转换成一个数组:

and I'd like to convert it into an array:

[1,2,3,4]

怎么样?

推荐答案

>> "1,2,3,4".split(",")
=> ["1", "2", "3", "4"]

或者对于整数:

>> "1,2,3,4".split(",").map { |s| s.to_i }
=> [1, 2, 3, 4]

或者对于更高版本的 ruby​​(>= 1.9 - 正如 Alex 所指出的):

Or for later versions of ruby (>= 1.9 - as pointed out by Alex):

>> "1,2,3,4".split(",").map(&:to_i)
=> [1, 2, 3, 4]

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