<span>本科</span><span class="vl">|</span><span>南宁</span><span class="vl">|</span><span>3000-5000元</span>
$(".vl").each(function () {
var $this = $(this);
if ($.trim($this.next().text()) == "" || $.trim($this.prev().text()) == "") {
$this.text("");
}
});