本文介紹了python爬蟲之BeautifulSoup 使用select方法詳解 ，分享給大家。具體如下：
<html><head><title>The Dormouse's story</title></head><body><p class="title" name="dromouse"><b>The Dormouse's story</b></p><p class="story">Once upon a time there were three little sisters; and their names were<a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1"><!-- Elsie --></a>,<a rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a> and<a rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3">Tillie</a>;and they lived at the bottom of a well.</p><p class="story">...</p>"""
我們?cè)趯?CSS 時(shí)，標(biāo)簽名不加任何修飾，類名前加點(diǎn)，id名前加 #，在這里我們也可以利用類似的方法來篩選元素，用到的方法是 soup.select()，返回類型是 list
（1）通過標(biāo)簽名查找
print soup.select('title') #[<title>The Dormouse's story</title>] print soup.select('a')#[<a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1"><!-- Elsie --></a>, <a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link2">Lacie</a>, <a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link3">Tillie</a>] print soup.select('b')#[<b>The Dormouse's story</b>]（2）通過類名查找
print soup.select('.sister')#[<a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1"><!-- Elsie --></a>, <a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link2">Lacie</a>, <a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link3">Tillie</a>]（3）通過 id 名查找
print soup.select('#link1')#[<a class="sister" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1"><!-- Elsie --></a>]
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