保存为csv格式
def __init__(self):
self.f = open("建设工程.csv", "a", newline="")
self.fieldnames = ["city", "postdate", "title", "projectAllName", "bidNo", "construction", 'companyName',
'site',
'architectName', 'registerNo', 'winBidTime', 'period', 'url']
self.writer = csv.DictWriter(self.f, fieldnames=self.fieldnames)
self.writer.writeheader()
def process_item(self, item, spider):
self.writer.writerow(item)
return item
def close(self, spider):
self.f.close()
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