冯安博 2021-04-23 02:47 开发者_Python百科说明你没发好，根本没法开池鹏 2021-04-23 0开发者_如何学JAVA3:03
Ruby: 1.9.2 Rails: 3.0beta3 I need some help with associations in Rails 3. I have the following models (see excerpts below):
加载中,请稍侯......