Scrapy中如何向Spider传入参数

# -*- coding: utf-8 -*-
import scrapy

class TiebaSpider(scrapy.Spider):
    name = 'tieba'  # 贴吧爬虫
    allowed_domains = ['tieba.baidu.com']  # 允许爬取的范围
    start_urls = []  # 爬虫起始地址

    # 命令格式： scrapy crawl tieba -a tiebaName=放置奇兵 -a pn=250
    def __init__(self, tiebaName=None, pn=None, *args, **kwargs):
        print('< 贴吧名称 >： ' + tiebaName)
        super(eval(self.__class__.__name__), self).__init__(*args, **kwargs)
        self.start_urls = ['https://tieba.baidu.com/f?kw=%s&ie=utf-8&pn=%s' % (tiebaName,pn)]

    def parse(self, response):
        print(response.request.url) # 结果：https://tieba.baidu.com/f?kw=%E6%94%BE%E7%BD%AE%E5%A5%87%E5%85%B5&ie=utf-8&pn=250

参考文章：

https://blog.csdn.net/c0411034/article/details/81750028 

https://blog.csdn.net/qq_24760381/article/details/80361400 

https://blog.csdn.net/qq_38282706/article/details/80991196