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[上海] 薄荷诚邀 Ruby 好手 (新传图片，薄荷 girl 向你招手，是否考虑换个不一样的环境呢) at January 07, 2015
好地方！！！
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初学者连载系列之六：Ruby 编程之正则表达式详解 at November 03, 2014
#5 楼 @hz_qiuyuanxin puts "1234abcdeffg_+--239-".scan(/\d/).join(",").delete(",").to_i
好地方！！！
#5 楼 @hz_qiuyuanxin puts "1234abcdeffg_+--239-".scan(/\d/).join(",").delete(",").to_i