发布时间: 2014-01-25 00:28:00
让这个方法出错,然后在backtrace中就可以找到它是在哪里定义的了 ^_^ ( make error on this method on purpose, e.g. pass incorrect parameters, and you will see where it is defined )
refer to: http://stackoverflow.com/questions/13514597/where-does-the-underscore-syntax-in-typo-erb-files-come-from