public void AddChat(params WeChatUser[] chat) { foreach (var item in chat) { if (ChatList.Any(p => p.UserName == item.UserName)) { continue; } ChatList.Add(item); ChatImageDownloadService.Add(item); } }
/// <summary> /// 是否包含 /// </summary> /// <param name="userName"></param> /// <returns></returns> public bool Contains(string userName) { return(ChatList.Any(p => p.UserName == userName)); }