如何使用python爬虫获取css伪元素例如：before
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解决时间 2021-02-05 21:55
- 提问者网友：佞臣
- 2021-02-05 00:57
如何使用python爬虫获取css伪元素例如：before
最佳答案
- 五星知识达人网友：雪起风沙痕
- 2021-02-05 02:27
:before是css中的一种伪元素，可用于在某个元素之前插入某些内容。 :after是css中的一种伪元素，可用于在某个元素之后插入某些内容。
全部回答
- 1楼网友：笑迎怀羞
- 2021-02-05 03:15
traceback (most recent call last):
file "d:\program files (x86)\jetbrains\pycharm educational edition 1.0.1\helpers\pydev\pydev_run_in_console.py", line 66, in
globals = run_file(file, none, none)
file "d:\program files (x86)\jetbrains\pycharm educational edition 1.0.1\helpers\pydev\pydev_run_in_console.py", line 28, in run_file
pydev_imports.execfile(file, globals, locals) # execute the script
file "d:/python/xpth/xpathpractice.py", line 51, in
results = pool.map(spider, page)
file "d:\anzhuang\anaconda\lib\multiprocessing\pool.py", line 251, in map
return self.map_async(func, iterable, chunksize).get()
file "d:\anzhuang\anaconda\lib\multiprocessing\pool.py", line 558, in get
raise self._value
indexerror: list index out of range12345678910
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