In addition, the types of actions or styles of activity models might need to be constrained to allow efficient transformation of those models to the target execution platform.
另外，活动模型样式或者操作的类型需要得到限制，以支持那些模型向目标执行平台的有效转换。
2
Therefore, the default styles must be set during the execution of the render Response phase before rendering the components.