9.Execute SQL command
When you want insert, update or delete, then use Exec as below
sql := "update userinfo set username=? where id=?" res, err := engine.Exec(sql, "xiaolun", 1) When you want insert, update or delete, then use Exec as below
sql := "update userinfo set username=? where id=?" res, err := engine.Exec(sql, "xiaolun", 1)