群消息被撤回事件 View Source src/objects/Event.ts, line 183 Members Type: number # authorId 消息发送者 QQ View Source src/objects/Event.ts, line 187 Type: Group # group 所属群 View Source src/objects/Event.ts, line 199 Type: number # messageId 消息 ID View Source src/objects/Event.ts, line 191 Type: Operator # operator 撤回消息者对象 View Source src/objects/Event.ts, line 203 Type: number # time 撤回时间（Unix 时间戳） View Source src/objects/Event.ts, line 195