我有一个网页,是这样的提取标签没有子元素
<p> Content </p>
...........
..........
<p> Other content
<b> Use link <b>
<h3> some text <h3>
</p>
...........
........... and some other elements starting with <p> tag having
different sub-elements inside it
我想要做的是只提取那些<p>
标签这可是没有任何的子元素