[JQuery] 在表單中(Form)，如何取得多個input欄位的value值？

How to get the value of multiple input fields in the form post
==================
HTML：

<form action="/EditWebSiteLinksPOrderAjax" id="postForm">
	<ul id="sortableUL">
	<li id="sort_0" class="ui-state-default">
	<input id="order0" name="POrder" type="hidden" value="0" />
	<input id="WebSiteLinksId" name="WebSiteLinksId" type="hidden" value="2" />
	</li>
	<li id="sort_1" class="ui-state-default">
	<input id="order1" name="POrder" type="hidden" value="1" />
	<input id="WebSiteLinksId" name="WebSiteLinksId" type="hidden" value="3" />
	</li>
	<li id="sort_2" class="ui-state-default">
	<input id="order2" name="POrder" type="hidden" value="2" />
	<input id="WebSiteLinksId" name="WebSiteLinksId" type="hidden" value="5" />
	</li>
	<li id="sort_3" class="ui-state-default">
	<input id="order3" name="POrder" type="hidden" value="3" />
	<input id="WebSiteLinksId" name="WebSiteLinksId" type="hidden" value="6" />
	</li>
	</ul>
	<p>
	<input type="submit" value="確定" />
	</p>
	</form>

  

【JQuery】：
var $form = $("#postForm");

(1) $form.find('input[name="POrder"]').map(function () { return $(this).attr("value") })
= ["0", "1", "2", "3"]


(2) $form.find('input[name="POrder"]').serializeArray()
=[Object { name="POrder", value="0"}, Object { name="POrder", value="1"}, Object { name="POrder", value="2"}, Object { name="POrder", value="3"}]