Update demo

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

@@ -0,0 +1,68 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public class DemoB_Aop
+    {
+        public static void Init()
+        {
+            Console.WriteLine("");
+            Console.WriteLine("#### Aop Start ####");
+
+            SqlSugarClient db = new SqlSugarClient(new ConnectionConfig()
+            {
+                DbType = DbType.SqlServer,
+                ConnectionString = Config.ConnectionString,
+                InitKeyType = InitKeyType.Attribute,
+                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.Aop.OnDiffLogEvent = it =>//Get data changes
+            {
+                var editBeforeData = it.BeforeData;
+                var editAfterData = it.AfterData;
+                var sql = it.Sql;
+                var parameter = it.Parameters;
+                var businessData = it.BusinessData;
+                var time = it.Time;
+                var diffType = it.DiffType;//enum insert 、update and delete  
+                Console.WriteLine(businessData);
+                Console.WriteLine(editBeforeData[0].Columns[1].Value);
+                Console.WriteLine("to");
+                Console.WriteLine(editAfterData[0].Columns[1].Value);
+                //Write logic
+            };
+
+     
+            db.Queryable<Order>().ToList();
+            db.Queryable<OrderItem>().ToList();
+
+            //OnDiffLogEvent
+            var data = db.Queryable<Order>().First();
+            data.Name = "changeName";
+            db.Updateable(data).EnableDiffLogEvent("--update Order--").ExecuteCommand();
+
+            Console.WriteLine("#### Aop End ####");
+        }
+    }
+}