diff --git a/src/ThingsGateway.Foundation/Foundation/Expressions/ExpressionsHelper.cs b/src/ThingsGateway.Foundation/Foundation/Expressions/ExpressionsHelper.cs
deleted file mode 100644
index a542195f4..000000000
--- a/src/ThingsGateway.Foundation/Foundation/Expressions/ExpressionsHelper.cs
+++ /dev/null
@@ -1,28 +0,0 @@
-using CodingSeb.ExpressionEvaluator;
-
-namespace ThingsGateway.Foundation
-{
-    [System.Security.SecuritySafeCritical]
-    public static class ExpressionsHelper
-    {
-        /// <summary>
-        /// 计算表达式：raw*100
-        /// </summary>
-        /// <param name="expressions"></param>
-        /// <returns></returns>
-        public static object GetExpressionsResult(this ExpressionEvaluator evaluator, string expressions, object rawvalue)
-        {
-            if (expressions.IsNullOrEmpty())
-            {
-                return rawvalue;
-            }
-            evaluator.Variables = new Dictionary<string, object>()
-                {
-                  { "Raw", rawvalue},
-                  { "raw", rawvalue},
-                };
-            var value = evaluator.Evaluate(expressions);
-            return value;
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/ThingsGateway.Web.Foundation/HostServices/Core/Helps/ExpressionEvaluatorExtension.cs b/src/ThingsGateway.Web.Foundation/HostServices/Core/Helps/ExpressionEvaluatorExtension.cs
index 796cca59c..3cf9ec19b 100644
--- a/src/ThingsGateway.Web.Foundation/HostServices/Core/Helps/ExpressionEvaluatorExtension.cs
+++ b/src/ThingsGateway.Web.Foundation/HostServices/Core/Helps/ExpressionEvaluatorExtension.cs
@@ -9,6 +9,7 @@ namespace ThingsGateway.Web.Foundation
     /// <summary>
     /// 表达式扩展
     /// </summary>
+    [System.Security.SecuritySafeCritical]
     public static class ExpressionEvaluatorExtension
     {
         static ExpressionEvaluator ExpressionEvaluator;
@@ -35,6 +36,25 @@ namespace ThingsGateway.Web.Foundation
             var value = ExpressionEvaluator.Evaluate(expressions);
             return value;
         }
+
+        /// <summary>
+        /// 计算表达式：raw*100
+        /// </summary>
+        public static object GetExpressionsResult(this ExpressionEvaluator evaluator, string expressions, object rawvalue)
+        {
+            if (expressions.IsNullOrEmpty())
+            {
+                return rawvalue;
+            }
+            evaluator.Variables = new Dictionary<string, object>()
+                {
+                  { "Raw", rawvalue},
+                  { "raw", rawvalue},
+                };
+            var value = evaluator.Evaluate(expressions);
+            return value;
+        }
+
         /// <summary>
         /// 表达式的扩展变量来源
         /// </summary>
diff --git a/src/ThingsGateway.Web.Foundation/Model/CollectVariableRunTime.cs b/src/ThingsGateway.Web.Foundation/Model/CollectVariableRunTime.cs
index be7ff620c..248764d6c 100644
--- a/src/ThingsGateway.Web.Foundation/Model/CollectVariableRunTime.cs
+++ b/src/ThingsGateway.Web.Foundation/Model/CollectVariableRunTime.cs
@@ -59,7 +59,7 @@ public class CollectVariableRunTime : CollectDeviceVariable
     public object LastSetValue;
 
     /// <summary>
-    /// 
+    /// 设置变量值
     /// </summary>
     /// <param name="value"></param>
     /// <param name="dateTime"></param>