实训day5-python-selenium基本使用

from selenium import webdriver
# 导入键盘Keys
from selenium.webdriver.common.keys import Keys
import time

driver = webdriver.Chrome()

# 检测代码块
try:
# 隐式等待,等待标签加载
driver.implicitly_wait(10)

# 往京东主页发送请求
driver.get('https://www.jd.com/')

# 通过id查找input输入框
input_tag = driver.find_element_by_id('key')

# send_keys为当前标签传值
input_tag.send_keys('中华字典')

# 按键盘的回车键
input_tag.send_keys(Keys.ENTER)

time.sleep(3)

'''
爬取京东商品信息:
公仔
名称
url
价格
评价
'''
# element 找一个
# elements 找多个
# 查找所有的商品列表
good_list = driver.find_elements_by_class_name('gl-item')
# print(good_list)

# 循环遍历每一个商品
for good in good_list:
# 通过属性选择器查找商品详情页url
# url
good_url = good.find_element_by_css_selector('.p-img a').get_attribute('href')
print(good_url)

# 名称
good_name = good.find_element_by_css_selector('.p-name em').text
print(good_name)

# 价格
good_price = good.find_element_by_class_name('p-price').text
print(good_price)

# 评价数
good_commit = good.find_element_by_class_name('p-commit').text
print(good_commit)


str1 = f'''
url: {good_url}
名称: {good_name}
价格: {good_price}
评价: {good_commit}
\n
'''
# 把商品信息写入文本中
with open('jd.txt', 'a', encoding='utf-8') as f:
f.write(str1)


time.sleep(10)

# 捕获异常
except Exception as e:
print(e)

# 最后都会把驱动浏览器关闭掉
finally:
driver.close()

 

  

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转载自www.cnblogs.com/ytt-1216/p/11104657.html