怎么用API创建一个node,并设置作者,title什么的?

http://drupalchina.org/node/4104

$book_node = new stdClass;
$book_node->type = "page";
$book_node->title = $title;
$book_node->body = $body;
$book_node->teaser = $teaser;
$book_node->lastupdate = $lastupdate;
$book_node->status = 1;
$book_node->uid = 1;
$book_node->promote = 1;
.............
node_save($book_node);