diff --git a/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs b/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs
index 18c808b39..b83d8dc46 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs
@@ -48,8 +48,8 @@ namespace OrmTest.Demo
 
             conModels.Add(new ConditionalCollections() { ConditionalList=new List<KeyValuePair<WhereType, SqlSugar.ConditionalModel>>()//  (id=1 or id=2 and id=1)
             {
-                new  KeyValuePair<WhereType, ConditionalModel>( WhereType.Or ,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "1" }),
-                new  KeyValuePair<WhereType, ConditionalModel> (WhereType.And,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "2" }),
+                new  KeyValuePair<WhereType, ConditionalModel>( WhereType.And ,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "1" }),
+                new  KeyValuePair<WhereType, ConditionalModel> (WhereType.Or,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "2" }),
                 new  KeyValuePair<WhereType, ConditionalModel> ( WhereType.And,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "2" })
             }
             });
diff --git a/Src/Asp.Net/SqlSugar/Infrastructure/ContextMethods.cs b/Src/Asp.Net/SqlSugar/Infrastructure/ContextMethods.cs
index 596f7a3ed..bb6635a0c 100644
--- a/Src/Asp.Net/SqlSugar/Infrastructure/ContextMethods.cs
+++ b/Src/Asp.Net/SqlSugar/Infrastructure/ContextMethods.cs
@@ -396,11 +396,15 @@ namespace SqlSugar
                             var isLast = index == (item.ConditionalList.Count - 1);
                             if (isFirst)
                             {
-                                builder.Append(" AND( ");
+                                builder.AppendFormat(" {0} ( ", con.Key.ToString().ToUpper());
                             }
                             List<IConditionalModel> conModels = new List<IConditionalModel>();
                             conModels.Add(con.Value);
                             var childSqlInfo = ConditionalModelToSql(conModels,1000*(1+index));
+                            if (!isFirst) {
+
+                                builder.AppendFormat(" {0} ", con.Key.ToString().ToUpper());
+                            }
                             builder.Append(childSqlInfo.Key);
                             parameters.AddRange(childSqlInfo.Value);
                             if (isLast)
@@ -409,7 +413,6 @@ namespace SqlSugar
                             }
                             else {
 
-                                builder.AppendFormat(" {0} ", con.Key.ToString().ToUpper());
                             }
                         }
                     }