我想在亚马逊的客户评论中得到1到5的房价.我查看了源代码,发现这部分看起来像
<div style="margin-bottom:0.5em;">
<span style="margin-right:5px;"><span class="swSprite s_star_5_0 " title="5.0 out of 5 stars" ><span>5.0 out of 5 stars</span></span> </span>
<span style="vertical-align:middle;"><b>Works great right out of the box with Surface Pro</b>, <nobr>October 5, 2013</nobr></span>
</div>
我希望从5星中获得5.0分
<span>5.0 out of 5 stars</span></span> </span>
我怎样才能使用xpathSApply来获取它？
谢谢!