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並前往https://www.quora.com/How-do-I-convert-this-string-into-an-array-in-Ruby

How do I convert this string into an array in Ruby? - Quora

a.slice(1...(a.size - 1)).split(",").map(&:strip).map(&:to_i). else. raise "Not an array like string". end. p result # => [1, 2, 3, 4]. p result[0] # => 1.

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