Question

我想通过硒获得验证码

我使用此代码可以很好地工作：

import base64
from selenium import webdriver

driver = webdriver.Firefox()
driver.set_script_timeout(10)

driver.get("http://sistemas.cvm.gov.br/?fundosreg")

driver.switch_to.frame("Main")

# find the captcha element
ele_captcha = driver.find_element_by_xpath("//img[contains(./@src,  'RandomTxt.aspx')]")

# get the captcha as a base64 string
img_captcha_base64 = driver.execute_async_script("""
var ele = arguments[0], callback = arguments[1];
ele.addEventListener('load', function fn(){
  ele.removeEventListener('load', fn, false);
  var cnv = document.createElement('canvas');
  cnv.width = this.width; cnv.height = this.height;
  cnv.getContext('2d').drawImage(this, 0, 0);
  callback(cnv.toDataURL('image/jpeg').substring(22));
}, false);
ele.dispatchEvent(new Event('load'));
""", ele_captcha)

# save the captcha to a file
with open(r"captcha.jpg", 'wb') as f:
    f.write(base64.b64decode(img_captcha_base64))

来自Selenium downloading different captcha image than the one in browser的来源

但在此代码中不起作用

    <div style="display: flex; align-items: center;">
<div style="cursor: pointer; height: 40px; line-height: 40px; width: 100%; border: 1px solid rgb(217, 217, 217); 
border-radius: 4px; background-image: url("https://web.com/getimg?ran=8472926"); 
background-size: 100% 100%;"></div>
</div>

因为没有元素id或src img或其他任何内容。我尝试其他代码，但无法下载验证码img。谢谢你。

python Selenium下载不同的验证码图像

0 个答案: