就这啊 AVIMConversationQuery * query = [[LCIMClient ShareClient] conversationQuery];
query.limit = 10000;
/* 指定返回对话的最后一条消息 */
query.option = AVIMConversationQueryOptionWithMessage;
__weak typeof(self)weakself = self;
[query findConversationsWithCallback:^(NSArray * _Nullable objects, NSError * _Nullable error) {
[weakself passconversations:objects];
}];
query不用加那个query.cachePolicy = kAVCachePolicyNetworkElseCache;发消息直接查询就可以查到最新的消息