我在散列中有这些数据:
[{"total_time"=>"00:04:48.563044"}, {"total_time"=>"00:05:29.835918"}, {"total_time"=>"00:09:38.622569"}]
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但我想要这个:
["00:04:48.563044", "00:05:29.835918", "00:09:38.622569"]
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需要使用Ruby 1.8.7.