<div class="price_d">
<p class="t">
<span id="dd-price-text">当当价</span>
<a class="price_down_remind score write_comment" href="javascript:void(0);" id="price_down">降价通知</a>
</p>
<p id="dd-price">
<span class="yen">¥</span>89.00
</p>
</div>
请问第二个P标签里面的89怎么通过python取出来?