Scrapy 符号替换

Question

我尝试从日期中删除 symsol ":" 但它不起作用:

 oper_dates=response.css('.textonline__date::text').extract()

 for item in oper_dates:
   clean_oper_date = item.replace(':', '')

oper_dates 正确获取数据但替换后我得到空 csv。为什么？

Answer 1

您需要将替换后的结果放在某个地方，并在最后将其保存到 csv 中：

 oper_dates=response.css('.textonline__date::text').extract()
 clean_oper_dates = []
 for item in oper_dates:
   clean_oper_date = item.replace(':', '')
   clean_oper_dates.append(clean_oper_date)
 
 # save clean_oper_dates into CSV

Scrapy 符号替换

Scrapy symbol replace

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