# -*- coding: utf-8 -*-import scrapyclass PostReqSpider(scrapy.Spider):    name = 'post_req'    # allowed_domains = ['www.bb.com']    start_urls = ['https://fanyi.baidu.com/sug']    # 默认这样的get    # def start_requests(self):    #     for url in self.start_urls:    #         yield scrapy.Request(url=url,callback=self.parse)    def start_requests(self):        for url in self.start_urls:            data = {                'kw':'dog'            }            yield scrapy.FormRequest(url=url, callback=self.parse,formdata=data)    def parse(self, response):        print(response.text)