class SciencedirectspiderSpider(scrapy.Spider):
    name = 'sciencedirectspider'
    allowed_domains = ['sciencedirect.com']
    start_urls = ['https://www.sciencedirect.com/search?qs=kidney%20stone']
　　　# 在初始化這裡進行
    def __init__(self, year='', search='', **kwargs):
        self.year = year
        self.search 
 
= search
        self.urls = 'https://www.sciencedirect.com/search?qs=' + search + '&years=' + year + '&sortBy=date'
        self.browser = webdriver.Chrome(chrome_options=chorme_options)
        super().__init__()

    def start_requests(self):
        # //*[@id="srp-pagination"]/li[1]/text()[4]

        url 
 
= "https://www.sciencedirect.com/search?qs=kidney%20stone"
        response = scrapy.Request(self.urls, callback=self.page, meta={'url': self.urls})
        yield response

執行命令：scrapy crawl sciencedirectspider --nolog -a "search=kidney stone" -a "year=2019"

** 注意一個-a一個引數

main執行語句：

from scrapy.cmdline import
 
 execute
# execute(['scrapy', 'crawl', 'sciencedirectspider','--nolog'])  # 不列印日誌
execute(['scrapy', 'crawl', 'sciencedirectspider','--nolog','-a','search=kidney stone','-a','year=2019'])  # 不列印日誌