Python之爬虫-京东商品

#!/usr/bin/env python# coding: utf-8from selenium import webdriverfrom selenium.webdriver import ActionChainsfrom selenium.webdriver.common.by import By  # 按照什么方式查找，By.ID,By.CSS_SELECTORfrom selenium.webdriver.common.keys import Keys  # 键盘按键操作from selenium.webdriver.support import expected_conditions as ECfrom selenium.webdriver.support.wait import WebDriverWait  # 等待页面加载某些元素import timedef get_goods(driver):    try:        goods = driver.find_elements_by_class_name('gl-item')        for good in goods:            detail_url = good.find_element_by_tag_name('a').get_attribute('href')            p_name = good.find_element_by_css_selector('.p-name em').text.replace('\n', '')            price = good.find_element_by_css_selector('.p-price i').text            p_commit = good.find_element_by_css_selector('.p-commit a').text            msg = '''            商品 : %s            链接 : %s            价钱 ：%s            评论 ：%s            ''' % (p_name, detail_url, price, p_commit)            print(msg, end='\n\n')        button = driver.find_element_by_partial_link_text('下一页')        button.click()        time.sleep(1)        get_goods(driver)    except Exception:        passdef spider(url, keyword):    driver = webdriver.Chrome()    driver.get(url)    driver.implicitly_wait(3)  # 使用隐式等待    try:        input_tag = driver.find_element_by_id('key')        input_tag.send_keys(keyword)        input_tag.send_keys(Keys.ENTER)        get_goods(driver)    finally:        driver.close()if __name__ == '__main__':    spider('https://www.jd.com/', keyword='华为P30')