[1.模块目录结构分析](1.%E6%A8%A1%E5%9D%97%E7%9B%AE%E5%BD%95%E7%BB%93%E6%9E%84%E5%88%86%E6%9E%90.md) [2. DTO（数据传输层）的核心作用](2.DTO%EF%BC%88%E6%95%B0%E6%8D%AE%E4%BC%A0%E8%BE%93%E5%B1%82%EF%BC%89%E7%9A%84%E6%A0%B8%E5%BF%83%E4%BD%9C%E7%94%A8.md) [3. VO（视图对象层）](3.VO%EF%BC%88%E8%A7%86%E5%9B%BE%E5%AF%B9%E8%B1%A1%E5%B1%82%EF%BC%89.md) [4. VO（视图对象层）和 DTO 数据传输层 的区别](4.VO%EF%BC%88%E8%A7%86%E5%9B%BE%E5%AF%B9%E8%B1%A1%E5%B1%82%EF%BC%89%E5%92%8CDTO%E6%95%B0%E6%8D%AE%E4%BC%A0%E8%BE%93%E5%B1%82%E7%9A%84%E5%8C%BA%E5%88%AB.md)