fix

AutoGeneratePurchaseAdvise/GeneratePurchaseAdviseBackgroundService.cs

@@ -12,7 +12,7 @@ namespace AutoGeneratePurchaseAdvise
     public class GeneratePurchaseAdviseBackgroundService : BackgroundService
     {
         private Timer _timer;
-
+        public DateTime? last_task_date = null;
         protected override Task ExecuteAsync(CancellationToken stoppingToken)
         {
 
@@ -25,7 +25,12 @@ namespace AutoGeneratePurchaseAdvise
             try
             {
                 var now = DateTime.Now;
-
+                if(last_task_date!=null && now.ToString("yyyy-MM-dd HH:mm")== last_task_date.Value.ToString("yyyy-MM-dd HH:mm"))
+                {
+                    return;
+                }
+                last_task_date = now;
+                //Console.WriteLine($"last_task_date : {last_task_date.Value.ToString("yyyy-MM-dd HH:mm:ss")}"  );
 
                 //if (now.Hour == 5 && now.Minute == 29)
                 //{