emitter发送和接收事件只和eventId有关。线程B on,on的回调是在线程B执行。文档参考:https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-emitter-V5\#emitteronhttps://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/itc-with-emitter-0000001885919633-V5
emitter发送和接收事件只和eventId有关。线程B on,on的回调是在线程B执行。文档参考:https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-emitter-V5\#emitteron
https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/itc-with-emitter-0000001885919633-V5