例如：

$sql = “UPDATE ecs_user SET user = ‘buxuan’ WHERE user_id = 1″;

$db->query($sql);

$table = “ecs_user”;

$field_values = array(“user” => “buxuan”);

$db->autoExecute($table, $field_values, “UPDATE”, “user_id = 1″);

// 执行的SQL： UPDATE ecs_user SET user = ‘buxuan’ WHERE user_id = 1

$table = “ecs_user”;

$field_values = array(“user” => “buxuan”);

$db->autoExecute($table, $field_values, 'INSERT', 'user_id = 1');