[.Net Core学习二]实时通讯 SignalR_一入编程深似海

1.添加客户端库

2.创建SignalR中心

 public class ChatHub : Hub
    {
        public async Task SendMessage(string user, string message)
        {
            await Clients.All.SendAsync("ReceiveMessage", user, message);
        }
    } public class