更新模型值；处理事件。

Update model values; process events.

youdao

由于验证发生在组件值绑定到模型之前(在更新模型值阶段)，所以模型处于未知状态。

Because validation occurs before the component values are bound to the model (in the update model values phase), the model is in an unknown state.

youdao

若表单是自动保存的，请求处理生命周期的这后三个阶段（更新模型值、调用应用程序和呈现响应）是不必要的。

The last three phases of the request processing life cycle (Update Model Values, Invoke Application, and Render Response) are not needed when the form is auto-saved.

youdao