Add db.CopyNew

Src/Asp.Net/SqlSugar/Interface/ISqlSugarClient.cs

@@ -44,6 +44,7 @@ namespace SqlSugar
         #endregion
 
         #region Other methods
+        SqlSugarClient CopyNew();
         T CreateContext<T>(bool isTran=true) where T : SugarUnitOfWork, new();
         SugarUnitOfWork CreateContext(bool isTran = true);
         SplitTableContext SplitHelper<T>() where T : class, new();

Src/Asp.Net/SqlSugar/SqlSugarClient.cs

@@ -996,6 +996,10 @@ namespace SqlSugar
         #endregion
 
         #region Other method
+        public SqlSugarClient CopyNew()
+        {
+            return new SqlSugarClient(UtilMethods.CopyConfig(this.Ado.Context.CurrentConnectionConfig));
+        }
         public DateTime GetDate()
         {
             return this.Context.GetDate();

Src/Asp.Net/SqlSugar/SqlSugarScope.cs

@@ -762,6 +762,9 @@ namespace SqlSugar
         {
             return ScopedContext.UpdateNav(datas);
         }
- 
+        public SqlSugarClient CopyNew() 
+        {
+            return new SqlSugarClient(UtilMethods.CopyConfig(this.Ado.Context.CurrentConnectionConfig));
+        }
     }
 }