Optional options: EventModuleOptionsOptional _appProtected _destroyedReadonly instanceStatic moduleWhether it has been destroyed.
Indicates whether the component is enabled.
增加事件回调
事件id,可通过removeEvent删除事件
移除监听.
Event name
Optional fn: FunctionFunction, If is undefined, delete all corresponding event listeners.
增加监听
Event name
Function
This
只监听一次.
Event name
Function
This
事件模块