标签:windows 函数 hid 分享图片 hide spi rom link 技术分享
经过8个小时的摸索,终于决定写下此随笔!
初学爬虫,准备爬取百度美女吧的图片,爬取图片之后发现打不开,上代码:
import urllib import urllib2 from lxml import etree def loadPage(url): """ 作用:根据url发送请求,获取响应文件 url:需要爬取的url地址 """ print(‘正在下载‘ ) ua_headers = { "User-Agent": "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)" } request = urllib2.Request(url, headers= ua_headers) html = urllib2.urlopen(request).read() # print html content = etree.HTML(html) link_list = content.xpath(‘//div[@class="t_con cleafix"]/div[2]/div[1]/div[1]/a/@href‘) for link in link_list: fulurl = ‘http://tieba.baidu.com‘ + link loadImage(fulurl) def loadImage(url): print ‘正在下载图片‘ ua_headers = { "User-Agent": "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)" } request = urllib2.Request(url, headers=ua_headers) html = urllib2.urlopen(request).read() content = etree.HTML(html) link_list = content.xpath(‘//img[@class="BDE_Image"]/@src‘) for link in link_list: print(link) writeImage(link) def writeImage(url): """ 作用:将HTML内容写入到本地 html:服务器响应文件内容 """ ua_headers = { ‘User-Agent‘: ‘Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36‘, ‘Cookie‘: ‘AspxAutoDetectCookieSupport=1‘ } request = urllib2.Request(url,headers = ua_headers) response =urllib2.urlopen(request) image = response.read() filename = url[-10:] print(‘正在保存‘ + filename) # print image with open(filename, "wb") as f: f.write(image) print(filename + ‘已保存‘) def tiebaSpider(url, beginPage, endPage): """ 作用:贴吧爬虫调度器。负责组合处理每个页面的url url:贴吧url的前部分 beginPage:起始页 endPage:结束页 """ for page in range(beginPage, endPage + 1): pn = (page - 1) * 50 fulurl = url + "&pn=" + str(pn) loadPage(fulurl) print(‘谢谢使用!‘) if __name__ == ‘__main__‘: kw = raw_input(‘请输入需要爬取的贴吧名:‘) beginPage = int(raw_input(‘请输入起始页:‘)) endPage = int(raw_input(‘请输入结束页:‘)) url = ‘http://tieba.baidu.com/f?‘ key = urllib.urlencode({"kw": kw}) fulurl = url + key tiebaSpider(fulurl,beginPage,endPage)
后来发现是writeImage()的参数跟函数体中调用的参数不一致导致的,
1 def writeImage(link): 2 """ 3 作用:将HTML内容写入到本地 4 html:服务器响应文件内容 5 """ 6 ua_headers = { 7 ‘User-Agent‘: ‘Mozilla/5.0 (Windows NT 6.1; WOW64) 8 AppleWebKit/537.36 (KHTML, like Gecko) 9 Chrome/35.0.1916.114 Safari/537.36‘, 10 ‘Cookie‘: ‘AspxAutoDetectCookieSupport=1‘ 11 } 12 request = urllib2.Request(url,headers = ua_headers) 13 response =urllib2.urlopen(request) 14 image = response.read() 15 filename = url[-10:] 16 print(‘正在保存‘ + filename) 17 # print image 18 with open(filename, "wb") as f: 19 f.write(image) 20 print(filename + ‘已保存‘)
将参数改成跟函数体内一致后,爬取的图片总算可以正常查看了!下面看看成果吧:
标签:windows 函数 hid 分享图片 hide spi rom link 技术分享
原文地址:https://www.cnblogs.com/holly-j/p/9844849.html