怎样用Python爬虫导出农药登记数据
这网站真是奇葩，在post中填2460，一次就获取所有数据。#!/usr/bin/env python# -*- coding: utf-8 -*-# @Author: LoveNight# @Date: 2015-11-30 20:19:57# @Last Modified by: LoveNight# @Last Modified time: 2015-11-30 21:00:23import requestsimport csvfrom bs4 import BeautifulSoup as BSqueryUrl = r\u0026#39;http://www.chinapesticide.gov.cn/myquery/queryselect\u0026#39;postData = https://www.zhihu.com/api/v4/questions/38038267/{"nylb": "卫生杀虫剂", "pageSize": "2460", "pageNo": "1", "djzh":"", "cjmc":"", "sf":"", "zhl":"", "jx":"", "zwmc":"", "fzdx":"", "yxcf":"", "yxcf_en":"", "yxcfhl":"", "yxcf2":"", "yxcf2_en":"", "yxcf2hl":"", "yxcf3":"", "yxcf3_en":"", "yxcf3hl":"", "yxqs_start":"", "yxqs_end":"", "yxjz_start":"", "yxjz_end":"",}with open(r"F:\\result.csv", \u0026#39;w\u0026#39;, encoding=\u0026#39;gbk\u0026#39;, newline=\u0026#39;\u0026#39;) as f: writer = csv.writer(f) html = requests.post(queryUrl, data=https://www.zhihu.com/api/v4/questions/38038267/postData).text trs = BS(html,"html.parser").find("table", id="tab").find_all("tr") for tr in trs: row = writer.writerow(row) 【怎样用Python爬虫导出农药登记数据】 
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