cas的无名 2020-04-29
import re import requests from urllib import error from bs4 import BeautifulSoup import os num = 0 numPicture = 0 file = ‘‘ List = [] def Find(url): global List print(‘正在检测图片总数,请稍等.....‘) t = 0 i = 1 s = 0 while t < 1000: Url = url + str(t) try: Result = requests.get(Url, timeout=7) except BaseException: t = t + 60 continue else: result = Result.text pic_url = re.findall(‘"objURL":"(.*?)",‘, result, re.S) # 先利用正则表达式找到图片url s += len(pic_url) if len(pic_url) == 0: break else: List.append(pic_url) t = t + 60 return s def recommend(url): Re = [] try: html = requests.get(url) except error.HTTPError as e: return else: html.encoding = ‘utf-8‘ bsObj = BeautifulSoup(html.text, ‘html.parser‘) div = bsObj.find(‘div‘, id=‘topRS‘) if div is not None: listA = div.findAll(‘a‘) for i in listA: if i is not None: Re.append(i.get_text()) return Re def dowmloadPicture(html, keyword): global num # t =0 pic_url = re.findall(‘"objURL":"(.*?)",‘, html, re.S) # 先利用正则表达式找到图片url print(‘找到关键词:‘ + keyword + ‘的图片,即将开始下载图片...‘) for each in pic_url: print(‘正在下载第‘ + str(num + 1) + ‘张图片,图片地址:‘ + str(each)) try: if each is not None: pic = requests.get(each, timeout=7) else: continue except BaseException: print(‘错误,当前图片无法下载‘) continue else: string = file + r‘\\‘ + keyword + ‘_‘ + str(num) + ‘.jpg‘ fp = open(string, ‘wb‘) fp.write(pic.content) fp.close() num += 1 if num >= numPicture: return if __name__ == ‘__main__‘: # 主函数入口 word = input("请输入搜索关键词(可以是人名,地名等): ") # add = ‘http://image.baidu.com/search/flip?tn=baiduimage&ie=utf-8&word=%E5%BC%A0%E5%A4%A9%E7%88%B1&pn=120‘ url = ‘http://image.baidu.com/search/flip?tn=baiduimage&ie=utf-8&word=‘ + word + ‘&pn=‘ tot = Find(url) Recommend = recommend(url) # 记录相关推荐 print(‘经过检测%s类图片共有%d张‘ % (word, tot)) numPicture = int(input(‘请输入想要下载的图片数量 ‘)) file = input(‘请建立一个存储图片的文件夹,输入文件夹名称即可‘) y = os.path.exists(file) if y == 1: print(‘该文件已存在,请重新输入‘) file = input(‘请建立一个存储图片的文件夹,)输入文件夹名称即可‘) os.mkdir(file) else: os.mkdir(file) t = 0 tmp = url while t < numPicture: try: url = tmp + str(t) result = requests.get(url, timeout=10) print(url) except error.HTTPError as e: print(‘网络错误,请调整网络后重试‘) t = t + 60 else: dowmloadPicture(result.text, word) t = t + 60 print(‘当前搜索结束,感谢使用‘) print(‘猜你喜欢‘) for re in Recommend: print(re, end=‘ ‘)