AmyLv (Amy-Lv) https://ruby-china.org/AmyLv en-us undefined method 这是怎么回事啊？？？ <p><img src="//l.ruby-china.com/photo/dad9d5e68f13e3147772f9a6c5eb120c.png" title="" alt=""></p> AmyLv Wed, 27 Feb 2013 13:30:48 +0800 https://ruby-china.org/topics/8971 https://ruby-china.org/topics/8971