fix

AutoTurnOver.DownloadService/DownloadService.cs

 using AutoTurnOver.DB;
+using AutoTurnOver.Services;
 using Microsoft.Extensions.Hosting;
 using System;
 using System.Collections.Generic;
@@ -14,7 +15,15 @@ namespace AutoTurnOver.DownloadService
 
         protected override Task ExecuteAsync(CancellationToken stoppingToken)
         {
-            _timer = new Timer(DoWork, null, TimeSpan.Zero, TimeSpan.FromMinutes(1));
+            Task.Factory.StartNew(async () => 
+            {
+                Console.WriteLine($"开始 下载任务  ，线程Id：{Thread.CurrentThread.ManagedThreadId}，{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}");
+                await new TaskDownloadServices().Download();
+                Console.WriteLine($"结束 下载任务 ，线程Id：{Thread.CurrentThread.ManagedThreadId}，{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}");
+
+                Thread.Sleep(3 * 1000);
+            });
+
             return Task.CompletedTask;
 
         }