jupyter运行结果为0是什么意思pattern=re.compile('<a href=" " class="name">(.*?)</a >.*?class="main-meta">(.*?)</span>.*?\<h2><a href=".*?">(.*?)</a ></h2>.*? \<span id=".*?">.*?(\d+).*?</span>.*?\<span id=".*?">(.*?)</span>.*? \<a href=".*?"class=reply ">(\d+)回应</a >' ,re.S)results=re.findall(pattern,content)print(len(results))for result in results: print("作者:",result[0]) print("时间:",result[1]) print("评论超链接:",result[2]) print("书评标题:",result[3]) print("点赞数:",result[4]) print("砸砖数:",result[5]) print("回应数:",result[6])