设置超时时间（项目案例仅供参考）

Posted 2020-09-19 陌溪

#设置超时时间爬取网页速度相对要快些
#encoding:utf8
from lxml import etree
#xpath
import re
#正则
import time
#时间
import requests
#传值
from selenium import webdriver
#通用阅览器
from selenium.webdriver.support.ui import WebDriverWait
#引用超时模块
import random
#自定义模块
url = ‘（网址）‘
driver = webdriver.Firefox()
#用火狐阅览器
driver.get(url)
time.sleep(3)
#限制时间
driver.maximize_window()
#页面放大
thelist = []
for i in range(1,10):
    time.sleep(1)
    WebDriverWait(driver,10).until(lambda the_driver:
    the_driver.find_element_by_xpath(‘//*[@id="tableData_"]/div[3]/nav/ul/li[last()]/a‘).is_displayed())
#设定超时和超时时间，超时时间是10秒
    driver.find_element_by_xpath(‘//*[@id="tableData_"]/div[3]/nav/ul//li[last()]/a‘).click()
#模拟点击
    yuan = driver.page_source
    #获取源代码
    xpa = etree.html(yuan)
    zheng = xpa.xpath(‘//*[@id="tableData_"]/div[2]/table/tbody/tr/td[8]/a/@href‘)
    thelist = thelist+zheng
    # print(thelist)
    for k in thelist:
        xin = "http://www.sse.com.cn"+k
        # print(xin)
        yuna2 = driver.get(xin)
        driver.maximize_window()
        me2 = driver.page_source
        WebDriverWait(driver,10).until(lambda the_driver:
                                       the_driver.find_element_by_xpath(‘//*[@id="overview-slide"]/div[1]/div[2]/div/a/span‘).is_displayed())
#设定超时和超时时间，超时时间是10秒
        driver.find_element_by_xpath(‘//*[@id="overview-slide"]/div[1]/div[2]/div/a/span‘).click()
        time.sleep(2)
        yuna3 = driver.page_source
        lxmls = etree.HTML(yuna3)
        zhua2 = lxmls.xpath(‘//*[@id="tableData_two"]/div[2]/table/tbody/tr/td[1]/text()‘)
        zhua3 = lxmls.xpath(‘//*[@id="tableData_two"]/div[2]/table/tbody/tr/td[2]/text()‘)
        zhua4 = lxmls.xpath(‘//*[@id="tableData_two"]/div[2]/table/tbody/tr/td[3]/div/text()‘)
        for g in range(len(zhua2)):
            print(zhua2[g])
            print(zhua3[g])
            print(zhua4[g])