实用的Python自动化代码

抓取知乎图片

from selenium import webdriver  
import time  
import urllib.request  
  
driver = webdriver.Chrome()  
driver.maximize_window()  
driver.get("https://www.zhihu.com/question/29134042")  
i = 0  
while i < 10:  
    driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")  
    time.sleep(2)  
    try:  
        driver.find_element_by_css_selector('button.QuestionMainAction').click()  
        print("page" + str(i))  
        time.sleep(1)  
    except:  
        break  
result_raw = driver.page_source  
content_list = re.findall("img src=\"(.+?)\" ", str(result_raw))  
n = 0  
while n < len(content_list):  
    i = time.time()  
    local = (r"%s.jpg" % (i))  
    urllib.request.urlretrieve(content_list[n], local)  
    print("编号：" + str(i))  
    n = n + 1