diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
index e6aeeaf0f..44c7a147c 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
@@ -500,6 +500,15 @@ namespace SqlSugar
                                    ((item as UnaryExpression).Operand as MemberExpression).Expression != null &&
                                    ((item as UnaryExpression).Operand as MemberExpression).Expression.NodeType == ExpressionType.Parameter;
         }
+        protected static bool IsNotParameter(Expression item)
+        {
+            return item is UnaryExpression &&
+                                     item.Type == UtilConstants.BoolType &&
+                                    (item as UnaryExpression).NodeType == ExpressionType.Not &&
+                                    (item as UnaryExpression).Operand is MemberExpression &&
+                                   ((item as UnaryExpression).Operand as MemberExpression).Expression != null &&
+                                   ((item as UnaryExpression).Operand as MemberExpression).Expression.NodeType == ExpressionType.MemberAccess;
+        }
 
         protected bool IsSubMethod(MethodCallExpression express)
         {
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
index 9df223d17..841889dcd 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
@@ -80,6 +80,17 @@ namespace SqlSugar
                         base.Context.Result.CurrentParameter = null;
                     }
                 }
+                else if (IsNotParameter(item))
+                {
+                    try
+                    {
+                        parameter.Context.Result.Append(base.Context.GetEqString(memberName,AppendParameter(ExpressionTool.DynamicInvoke(item).ObjToBool())));
+                    }
+                    catch  
+                    {
+                        throw new NotSupportedException(item.ToString());
+                    }
+                }
                 else if (IsMethod(item))
                 {
                     if (item is UnaryExpression)
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/UnaryExpressionResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/UnaryExpressionResolve.cs
index a662a34c1..7f9c41d96 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/UnaryExpressionResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/UnaryExpressionResolve.cs
@@ -41,6 +41,10 @@ namespace SqlSugar
                     {
                         AppendNotMember(parameter,nodeType);
                     }
+                    else if (baseParameter.OperatorValue == "=" && IsNotParameter(oldExpression))
+                    {
+                        AppendNotParameter(parameter, nodeType);
+                    }
                     else if (base.Expression is BinaryExpression || parameter.BaseExpression is BinaryExpression || baseParameter.CommonTempData.ObjToString() == CommonTempDataType.Append.ToString())
                     {
                         Append(parameter, nodeType);
@@ -156,5 +160,25 @@ namespace SqlSugar
             parameter.CommonTempData = null;
         }
 
+
+        private void AppendNotParameter(ExpressionParameter parameter, ExpressionType nodeType)
+        {
+            BaseParameter.ChildExpression = base.Expression;
+            this.IsLeft = parameter.IsLeft;
+            parameter.CommonTempData = CommonTempDataType.Result;
+            base.Start();
+            var result = this.Context.DbMehtods.IIF(new MethodCallExpressionModel()
+            {
+                Args = new List<MethodCallExpressionArgs>() {
+                                  new MethodCallExpressionArgs(){ IsMember=true, MemberName=AppendParameter(parameter.CommonTempData)+"=1" },
+                                  new MethodCallExpressionArgs(){ IsMember=true,MemberName=AppendParameter(0)  },
+                                  new MethodCallExpressionArgs(){ IsMember=true, MemberName=AppendParameter(1)  }
+                           }
+            });
+            this.Context.Result.Append(result);
+            parameter.BaseParameter.ChildExpression = base.Expression;
+            parameter.CommonTempData = null;
+        }
+
     }
 }