private const string ServerUrl = "http://localhost:9000/"; //监听端口9000的地址
public static void Main(string[] args)
{
var server = new WebServer(concurrentCount);
RegisterMiddleware(server);
server.Bind(ServerUrl); //本质上是监听 --bind 对端口做监听
server.Start();
Console.WriteLine($"Web server started at {ServerUrl}. Press any key to exist...");
Console.ReadKey();
}