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我是rails的新手。谁能告诉我嵌套属性到底是什么以及何时使用它们,并举一个很好的例子?
我会说检查这两个 railscast
嵌套模型表单第 1 部分
嵌套模型表单第 2 部分
如果您想阅读,请检查此