• and / or is NOT the same as && / ||
• super is NOT the same as super()
• Your exception must not be an Exception
• class Foo::Bar is NOT the same as module Foo; class Bar
• Most bang! methods return nil when they do nothing
• attribute=(value) method always returns passed value, regardless of method return value
• private will NOT make your self.method private

http://ruby-china.org/topics/17742

这精华加的太随便了吧，现在这种加精华的方式还不如以前按喜欢来排列，至少以前的方式就不会出现这种问题。

精华帖泛滥了已经 以前都明确要求原创的啊

我取消精华了。

mark，谢分享

呀 被加精有取消了？只是分享下，精不精华无所谓啦