API 文档工具与插件functionscreateBroadcastTopic()本页总览createBroadcastTopic() function createBroadcastTopic<T>(event): BroadcastTopic<T>; Defined in: @browser/broadcast-channel-pool.ts:96 创建一个 BroadcastChannel 主题 Type Parameters Type ParameterDefault typeTany Parameters ParameterTypeDescriptioneventstring频道名称 Returns BroadcastTopic<T> BroadcastTopic 对象,包含消息流和发送方法