from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException, NoSuchElementException

driver_list=[‘1‘,‘2‘]
driver_list[0]
 
=webdriver.Chrome()
wait=WebDriverWait(driver_list[0],10)
d_f_e=driver_list[0].find_element

#容易出錯的地方是陳舊的driver session="21e0d1dbb207391e66143672a16fef1f"被加載到文檔導致信息不一致，解決辦法是函數執行操作時重新拾取最新的session
#自定義方法
def EC_located(value):
    #重新獲取最新的session============
    wait = WebDriverWait(driver_list[0], 10)#重點在這==============
 

    d_f_e = driver_list[0].find_element#重點在這====================
    try:
        ecl=wait.until(EC.presence_of_element_located((By.CSS_SELECTOR,value)))
        return ecl
    except TimeoutException:
        print(value,‘元素未加載成功，等待超時‘)


#點擊下一頁的操作
u_r_l=[‘1‘,‘2‘]
tb_url=u_r_l[0]
def next_page():
    
 
try:
        #先記錄總頁數1.先看總頁數是否存在 2.記錄總頁數
        total=EC_located(‘.total‘).text
        sub_page=int(re.findall(‘\d+‘,total)[0])
        #先記錄當前高亮頁碼
        page[0]=(int(EC_located(‘.item.active span‘).text))
        # 檢查激活頁碼下一個是不是已經加載出來
        next = EC_located(‘.item.active+li>a‘)
        next.click()
        #檢查高亮的頁碼選項是不是比剛才的+1
        time.sleep(1)
        if next_ok(page[0]) ==True:
            print(‘ok‘)
        else:
            print(‘翻頁失敗，正在重試...‘)
            return next_page()
    except:
        print(driver_list[0])
        #IP不能用了的處理辦法
        print(‘IP不能用了，正在重啟瀏覽器‘)
        off_sta()

def off_sta():
    deiver = driver_list[0]
    # 先預先記錄本頁url地址，以備後面翻頁失敗後重啟調用url
    u_r_l[0] = driver_list[0].current_url
    tb_url = u_r_l[0]
    ‘‘‘關閉重試‘‘‘
    try:
        driver_list[0].close()
    except:
        pass
    driver_list[0] = webdriver.Chrome()
    driver_list[0].get(tb_url)
    next_page()

page=[‘haha‘,‘xixi‘]
def next_ok(page_num):
    print(‘執行了next_ok(page_num)函數‘)
    if int(page_num)==int(EC_located(‘.item.active span‘).text):
        print(‘翻頁不成功‘)
        yes=False
    else:
        print(‘翻頁成功‘)
        yes=True
    return yes

瀏覽器重啟會話重拾