Merge branch 'master' of http://106.15.194.121:8083/zdl/NS100

BLL/Camera.cs

@@ -127,7 +127,18 @@ namespace BLL
             {
                 cameraVision.Open();
                 result = cameraVision.GetImage();
-                barcodeInfos = Camera.GetBarCode(result[0]);
+                for (int i = 0; i < result.Length; i++)
+                {
+                    if (result[i] != null)
+                    {
+                        barcodeInfos = Camera.GetBarCode(result[i]);
+                        if (i != 0)
+                        {
+                            result[0]?.Dispose();
+                            result[0] = result[i];
+                        }
+                    }
+                }
                 cameraVision.Close();
             }
             return result;