关于try和except执行问题
for i in range(1, n + 1):
try:
try:
qianfang.find_element(By.XPATH,
'//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div['
'2]/div/div[3]/table/tbody/tr[{}]/td[3]/div/button/span'.format(i)).click()
except NoSuchElementException:
print('重复')
continue # 如果已经找不到元素，跳出内层循环，继续执行下一次外层循环
except TimeoutException:
print('超时')
continue这段代码执行了
NoSuchElementException
但是没有执行
TimeoutException
这个是什么原因
6
收起
正在回答 回答被采纳积分+1
1回答
时间，
2023-03-03 11:29:32
同学，你好！执行了NoSuchElementException表示程序报的是NoSuchElementException错误，只有程序执行时报了TimeoutException错误之后才会捕获到该异常。
例：
try:
try:
a = int(input("输入被除数："))
b = int(input("输入除数："))
c = a / b
print("您输入的两个数相除的结果是：", c)
except ValueError:
print("程序发生了数字格式异常")
except ZeroDivisionError:
print("除数不能为0")
祝学习愉快！
-
_一号 #1
import math from selenium.webdriver.common.keys import Keys from selenium.webdriver.common.by import By import time import re import csv from selenium import webdriver from lxml import etree from bs4 import BeautifulSoup from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.common.exceptions import NoSuchElementException from selenium.common.exceptions import TimeoutException f = open("千方M1新增联系人连续导出--.csv", mode='w', newline='', encoding='gbk') # utf-8 writer_obj = csv.writer(f) with open("accounts.txt") as f: lines = f.readlines() accounts = [line.strip().split(',') for line in lines] url = 'http://fintech.fintech55.com/csxt-web' qianfang = webdriver.Chrome() # 遍历账户登录 for account in accounts: try: username = account[0] password = account[1] qianfang.get(url) username_field = qianfang.find_element(By.XPATH, '//*[@id="app"]/div/section/div/div[1]/form/div[2]/div/div/div[1]/input') password_field = qianfang.find_element(By.XPATH, '//*[@id="app"]/div/section/div/div[1]/form/div[3]/div/div/div[1]/input') username_field.send_keys(username) password_field.send_keys(password) password_field.send_keys(Keys.RETURN) except IndexError: print('导出完成') break qianfang.find_element(By.XPATH, '//*[@id="app"]/div/section/div/div[1]/form/div[5]/div/div/button[2]') time.sleep(1) qianfang.get('http://fintech.fintech55.com/csxt-web/#/telephone-collection-manage/tel-person-case-manage') time.sleep(1) # 获取页面信息 WebDriverWait(qianfang, 50, 0.5).until(EC.presence_of_element_located( (By.XPATH, '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div[3]/div[2]/span[1]'))) qianfang.find_element(By.XPATH, '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/div[1]/div/label[2]/span').click() time.sleep(2) print('循环操作，获取剩余页数的数据') last_page = qianfang.find_element(By.XPATH, '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div[3]/div[2]/span[1]').text last_page_2 = re.findall('共 (.*?) 条', last_page) test = int(last_page_2[0]) last_page_1 = math.ceil(test / 10) for page in range(0, last_page_1): print(username, "----------进行至第{}页，一共{}页有{}条----------".format(page + 1, last_page_1, test)) latest_driver = qianfang.window_handles[-1] qianfang.switch_to.window(latest_driver) n = 10 for i in range(1, n + 1): try: try: qianfang.find_element(By.XPATH, '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div[' '2]/div/div[3]/table/tbody/tr[{}]/td[3]/div/button/span'.format(i)).click() except NoSuchElementException: print('重复') continue # 如果已经找不到元素，跳出内层循环，继续执行下一次外层循环 except TimeoutException: print('超时') break #except Exception: # qianfang.find_element(By.XPATH, # '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div[2]/div/div[3]/table/tbody/tr/td[3]/div/button/span').click() # print('切换下个账号') # break WebDriverWait(qianfang, 50, 0.5).until(EC.presence_of_element_located( (By.XPATH, '//*[@id="app"]/div/section/div[4]/div[1]/section/section/section/div[1]/div/div[3]/table/tbody/tr[1]/td[6]/div'))) name = [] name.append(username) html = etree.HTML(qianfang.page_source) list_1 = html.xpath( '//div[@class="el-col el-col-5"]//button[@class="el-button el-tooltip span-style el-button--text"]/span/text()') list_1_0 = [list_1[1]] # print(list_1_0,end=' ') # writer_obj.writerow(list_1_0) list_2 = html.xpath( '//div[@class="data-grid-item-container row"]/div[@class="data-grid-item__content col-span"]/text()') list_2_0 = [list_2[4]] #print(list_2_0,end=' ') # writer_obj.writerow(list_2_0) soup_01 = BeautifulSoup(qianfang.page_source, 'lxml') data_fy = soup_01.find_all('table', class_="el-table__body") for item_fy_01 in data_fy: data_fy_02 = item_fy_01.find_all('div', class_="cell") data_fy_03 = re.findall( '<div class="cell"><div>(.*?)</div></div>, <div class="cell">(.*?)</div>, <div class="cell">(.*?)</div>, <div class="cell">(.*?)</div>, <div class="cell">(.*?)</div>, <div class="cell">(.*?)</div>, <div class="cell el-tooltip" style="width: 176px;">(.*?)</div>, <div class="cell"><button class="el-button el-button--text el-button--small" data-v-df2042d4="" type="button"><!-- --><!-- --><span>(.*?)</span>', str(data_fy_02)) for data_fy_04 in data_fy_03: two = {} two['电话'] = data_fy_04[5] lst_01 = [ data_fy_04[5] ] # print(lst_01, end=' ') # writer_obj.writerow(lst_01) row = name + list_1_0 + list_2_0 + lst_01 print(row, end=' ') writer_obj.writerow(row) f.close() print('\n') qianfang.find_element(By.XPATH, '//*[@id="app"]/div/section/div[1]/div/button[2]/span').click() time.sleep(0.2) # 定位下一页按钮 qianfang.find_element(By.XPATH, '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div[3]/div[2]/button[2]/i').click() WebDriverWait(qianfang, 5, 0.5).until(EC.presence_of_element_located( (By.XPATH, '//*[@id="app"]/section/div/div[2]/div[2]/div[1]/section/section[2]/div[2]/div/div[3]/table/tbody/tr[2]/td[3]/div/button/span'))) qianfang.quit()我这个第72-86，改来改去都是不行，最后面运行的事情确实是出现Timeout，但是没有跳转
2023-03-03 11:34:11
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