1.实例代码为实现获取json文件中的图像:
# -*- coding:utf-8 -*- import requests import re import os def get_page_url(url, param): response = requests.get(url, params=param) response.encoding = 'utf-8' return response.text def parse_page(str): pattern = re.compile('"middleURL":"(.*?)",')#利用正则匹配图片url url_list = re.findall(pattern, str) return url_list def run(keyword, path): url = "https://image.baidu.com/search/acjson" i = 0 for j in range(30, 3270, 30): params = {"ipn": "rj", "tn": "resultjson_com", "word": keyword, "pn": str(j)} html = get_page_url(url, params) lists = parse_page(html) print(lists) for item in lists: try: img_data = requests.get(item, timeout=10).content with open(path + "/" + str(i) + ".jpg", "wb") as f: f.write(img_data) f.close() i = i+1 except requests.exceptions.ConnectionError: print('can not download') continue def make_dir(keyword): path = "F:/test/" path = path+keyword is_exists = os.path.exists(path) if not is_exists: os.makedirs(path) return path else: print(path + '目录已存在') return path def main(): # keyword = input_raw("input keyword about images you want to download: ") keyword = '大叔戴安全帽' path = make_dir('helmet1') run(keyword, path) if __name__ == '__main__': main()