Update demo

Src/Asp.Net/SqlServerTest/Demo/Demo9_EntityMain.cs

@@ -29,7 +29,12 @@ namespace OrmTest
                     }
                 }
             });
-
+            var entityInfo = db.EntityMaintenance.GetEntityInfo<Order>();
+            foreach (var column in entityInfo.Columns)
+            {
+                Console.WriteLine(column.DbColumnName);
+            }
+            //more https://github.com/sunkaixuan/SqlSugar/wiki/9.EntityMain
             Console.WriteLine("#### EntityMain End ####");
         }
     }

Src/Asp.Net/SqlServerTest/Demo/DemoA_DbMain.cs

@@ -30,6 +30,12 @@ namespace OrmTest
                 }
             });
 
+            var tables = db.DbMaintenance.GetTableInfoList();
+            foreach (var table in tables)
+            {
+                Console.WriteLine(table.Description);
+            }
+            //more https://github.com/sunkaixuan/SqlSugar/wiki/a.DbMain
             Console.WriteLine("#### DbMain End ####");
         }
     }

Src/Asp.Net/SqlServerTest/Demo/DemoB_Aop.cs

@@ -19,16 +19,29 @@ namespace OrmTest
                 DbType = DbType.SqlServer,
                 ConnectionString = Config.ConnectionString,
                 InitKeyType = InitKeyType.Attribute,
-                IsAutoCloseConnection = true,
-                AopEvents = new AopEvents
-                {
-                    OnLogExecuting = (sql, p) =>
-                    {
-                        Console.WriteLine(sql);
-                        Console.WriteLine(string.Join(",", p?.Select(it => it.ParameterName + ":" + it.Value)));
-                    }
-                }
+                IsAutoCloseConnection = true
             });
+            db.Aop.OnLogExecuted = (sql, pars) => //SQL executed event
+            {
+                Console.WriteLine("OnLogExecuted"+sql);
+            };
+            db.Aop.OnLogExecuting = (sql, pars) => //SQL executing event (pre-execution)
+            {
+                Console.WriteLine("OnLogExecuting" + sql);
+            };
+            db.Aop.OnError = (exp) =>//SQL execution error event
+            {
+                //exp.sql             
+            };
+            db.Aop.OnExecutingChangeSql = (sql, pars) => //SQL executing event (pre-execution,SQL script can be modified)
+            {
+                return new KeyValuePair<string, SugarParameter[]>(sql, pars);
+            };
+
+
+
+            db.Queryable<Order>().ToList();
+            db.Queryable<OrderItem>().ToList();
 
             Console.WriteLine("#### Aop End ####");
         }