browser = webdriver.Chrome()
    wait = WebDriverWait(browser, 10)
    browser.get('https://www.baidu.com')
    time.sleep(3)

    browser.get_screenshot_as_file('C:\\Users\\zd\\Desktop\\baidu.png')
    # 或者 
    # driver.save_screenshot('full_snap.png')
    # page_snap_obj=Image.open('full_snap.png')

注意file中是两个\\

以下是通过截取全屏，再定位到目标（验证码）图片进行截取目标图片并保存。

from PIL import Image

def get_snap(driver):  # 对目标网页进行截屏。这里截的是全屏
    driver.save_screenshot('full_snap.png')
    page_snap_obj=Image.open('full_snap.png')
    return page_snap_obj


def get_image(driver): # 对验证码所在位置进行定位，然后截取验证码图片
    img = driver.find_element_by_class_name('code')
    time.sleep(2)
    location = img.location
    print(location)
    size = img.size
    left = location['x']
    top = location['y']
    right = left + size['width']
    bottom = top + size['height']

    page_snap_obj = get_snap(driver)
    image_obj = page_snap_obj.crop((left, top, right, bottom))
    # image_obj.show()
    return image_obj  # 得到的就是验证码