## 模型的基本CURD操作 | 用法 | Db类 | 模型(动态) | 模型(静态) | | --- | --- | --- | --- | | 创建 | insert | save | create | | 更新 | update | save | update | | 读取单个 | find | find | get | | 读取多个 | select | select | all | | 删除 | delete | delete | destroy |