视觉检测锁修改

DeviceLibrary/DeviceLibrary/CodeManager.cs

@@ -259,6 +259,8 @@ namespace DeviceLibrary
             int retrytime = 0;
             if (Monitor.TryEnter(testLocObj))
             {
+                try
+                {
                 retry:
                     string logtxt = $"【" + cameraName + "】开始取图片测试是否有料盘" + "\r\n";
                     DateTime startTime = DateTime.Now;
@@ -348,7 +350,6 @@ namespace DeviceLibrary
                                 bmp.Dispose();
                             if (!string.IsNullOrEmpty(logtxt))
                                 LogUtil.info(logtxt);
-                        Monitor.Exit(testLocObj);
                         }
                     }
                     else
@@ -498,10 +499,13 @@ namespace DeviceLibrary
                                 bmp.Dispose();
                             if (!string.IsNullOrEmpty(logtxt))
                                 LogUtil.info(logtxt);
-                        Monitor.Exit(testLocObj);
                         }
                     }
-
+                }
+                finally
+                {
+                    Monitor.Exit(testLocObj);
+                }
             }
             else
                 return null;