from selenium import webdriver
from PIL import Image
import pytesseract

driver=webdriver.Firefox()
driver.get('網址')
driver.implicitly_wait(10)

driver.save_screenshot(r'E:\code_full.png')

#下面的xpath需要自己參考特定的網頁結構編寫
href=driver.find_element_by_xpath('//*[@id="captchaImg"]')
left = href.location['x']
top = href.location['y']
elementWidth = href.location['x'] + href.size['width']
elementHeight = href.location['y'] + href.size['height']
picture = Image.open(r'E:\code_full.png')
picture = picture.crop((left, top, elementWidth, elementHeight))
picture.save(r'E:\code.png')

#此處編寫處理驗證碼圖片的函式，獲得字串驗證碼，可以自己編寫
image=Image.open(r'E:\code.png')
word=pytesseract.image_to_string(image)
image.close()
#此處編寫處理驗證碼圖片的函式，獲得字串驗證碼，可以自己編寫

#下面的id,name需要自己參考特定的網頁結構編寫
driver.find_element_by_id('username').clear()
driver.find_element_by_id('password').clear()
driver.find_element_by_id('username').send_keys('賬戶名')
driver.find_element_by_id('password').send_keys('密碼')
driver.find_element_by_id('code').send_keys(word)
driver.find_element_by_name('btn').click()
print(driver.page_source)