init: 初始框架

Worker.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace cloudPrintWinAgent
+{
+    public sealed class Worker : BackgroundService
+    {
+        private readonly ILogger<Worker> _logger;
+
+        public Worker(ILogger<Worker> logger)
+        {
+            _logger = logger;
+        }
+
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            _logger.LogInformation("WinAgent started at: {Time}", DateTimeOffset.Now);
+
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                // TODO: 后续放心跳、订阅任务、状态回传
+                _logger.LogInformation("WinAgent heartbeat tick at: {Time}", DateTimeOffset.Now);
+                await Task.Delay(TimeSpan.FromSeconds(10), stoppingToken);
+            }
+
+            _logger.LogInformation("WinAgent stopping at: {Time}", DateTimeOffset.Now);
+        }
+    }
+}