一、创建一个Scrapy项目fanyi，并进入该项目创建，fanyipc爬虫文件文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/46386.html
scrapy startproject fanyi
cd fanyi
scrapy genspider example example.com二、修改配置文件settings，关闭君子协议，只看报错信息，自定义UA头文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/46386.html
ROBOTSTXT_OBEY = False
LOG_LEVEL = 'ERROR'
USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36"三、分析目标网址，用的POST请求文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/46386.html
四、重写父类方法实现POST请求文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/46386.html
start_urls = ["https://fanyi.baidu.com/sug"]
def start_requests(self):
POST数据={'kw':'cat'}
for url in self.start_urls:
yield scrapy.FormRequest(url=url,callback=self.parse,formdata=POST数据)
def parse(self, response):
结果=response.json()
#print(结果)五、运行结果文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/46386.html
{'errno': 0, 'data': [{'k': 'cat', 'v': 'n. 猫; 猫科动物; 狠毒的女人; 爵士乐爱好者 vt. 把（锚）吊放在锚架上; 〈俚〉寻欢，宿娼'}, {'k': 'CAT', 'v': 'abbr. Carburetor Air
Temperature 汽化器空气温度'}, {'k': 'Cat', 'v': '[人名] 卡特'}, {'k': 'CaT', 'v': 'abbr. calcium tartrate tetrahydrate 酒石酸钙四水合物'}, {'k': 'cata', 'v': '[机] 渺位;
依照'}]}六、如果首页地址是get请求，解析内容用到了POST请求，可以在psrse里面再进行post操作文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/46386.html