此模式与前一模式类似，充当事件引擎的预处理器。

This pattern is like the preceding pattern in that it ACTS as a pre-processor for an event engine.

youdao

此模式与前一模式类似，充当事件引擎的预处理器。

This pattern is like the preceding pattern in that it ACTS as a pre-processor for an event engine.

youdao