add error check

Src/Asp.Net/SqlSugar/SqlSugarClient.cs

@@ -181,6 +181,10 @@ namespace SqlSugar
         public IInsertable<T> Insertable<T>(T insertObj) where T : class, new()
         {
             Check.Exception(typeof(T).FullName.Contains("System.Collections.Generic.List`"), "  need  where T: class, new() ");
+            if (typeof(T).Name == "Object") 
+            {
+                Check.ExceptionEasy("Object type use db.InsertableByObject(obj).ExecuteCommand()", "检测到T为Object类型，请使用 db.InsertableByObject(obj).ExecuteCommand()，Insertable不支持object，InsertableByObject可以不过功能比较少");
+            }
             return this.Context.Insertable<T>(insertObj);
         }